You've moved the goalpost. You wrote, "the actual purpose of engaging in commercial trade: to serve the well being of all those involved in the trade." I answered, "that's not why most people go into business." Now you're saying legitimate purpose. I still disagree. Making a living is a legitimate purpose for going into business.
Making a living by exploiting others economically is not a legitimate way to make a living. Commerce is not exploitation. And exploitation is not fair trade. And the fact that most people living under a capitalist system don't understand the difference doesn't change the truth of it, and doesn't make exploitation a legitimate trade practice. So however many people choose to do it, is irrelevant. It's bad for humanity to engage in exploitation as commerce. And it is destroying our collective well-being as a result.
It has nothing to do with moving any goal posts. The goal was always the same: the best results for the most people. Unfortunately, we have allowed the selfishness inherent to the greed of capitalism to completely blind us to the truth and wisdom of this collective goal. To the point that many of us here are trying to argue against it, and defend selfishness and greed as positive traits, or at least as inevitable and acceptable aspects of commerce. And they are not. They are a kind of poison that ruins everything and everyone it infects.
Exploitation is also not the purpose of going into business. It wasn't my purpose.
It doesn't matter what your purpose was. You will be exploited for maximum profit whenever possible by almost anyone you trade with. And that will inevitably force you to respond in kind just to stay in business. Commerce is a battleground in a capitalist system because it's based on exploiting every exchange with everyone else for maximum profit returned on the capital invested.
I listed many of the remedies that government can employ to protect workers. Competing for dollars in an unregulated environment with no social safety net doesn't work except for a very few, but the system works well for most in the hands of progressives.
The problem is that it does not work well for long, because the capitalists are constantly trying to circumvent those remedies. And they have the wealth and power to do that because capitalism is a rigged system that rewards the wealthy and powerful with more of both.
Some of those measures were imposed in the middle of the last century, and they worked well for a few decades. But now most of them have been erased, or reversed, or rendered impotent by capitalist bribery, and it only took them 50 years to do it. And they've been destroying the nation and the economy for 40 years since. Half our population is now in or on the edge of poverty. Towns all across America are collapsing into gutted main streets and falling down abandoned houses. People with jobs are living in broken down RVs and tents because they can't afford a place to live. The income disparity has become that drastic.
Our weak half-measures don't work because they don't address the real problem of systemic greed being rewarded by an economic system that cares only about profit on capital investment and not at all about human well-being. And we humans are INSANE to continue engaging in it. It's a form of collective suicide.
Regarding exploitation, on a playing field that protect workers and allows them to earn a working wage if they work fulltime, people aren't exploited. They are expected to develop useful and saleable skills including the trades and to apply themselves. Absent mental illness, able-bodied people of little intellectual ability can do that. If you make nothing of yourself, you'll end up your back or selling Big Macs, but I don't consider that exploitation.
Not everyone has the same capacity for navigating such a system. Not everyone wants to. Stop using yourself as the yardstick for everyone else's capabilities and desires. I agree we all need to contribute to the collective function of our society. But we all need to benefit from it, too. And not just the ones that contribute much, but those that contribute little, too. But capitalism doesn't care about any of that. It's nothing more than a money pump for the wealthy investors. So long as you work to keep that pump operating, they will let you live. When you can no longer do that, they are happy to let you die. And in either case, they are not going to share any of their profits with anyone else that they don't absolutely have to, to keep the money pump pumping.
It's a stupid way for a society of human beings to live. And it causes great unnecessary strife and suffering. We need to grow up and get rid of it once and for all.