Living conditions on Earth are not getting better with time, as you think.
So life expectancy hasn't tripled since the advent of modern science?
Infant mortality isn't at an all-time low?
At this point it is not just about the benefits that some human beings receive, but about the damage that is being done to our planet so that they can have those personal benefits.
Yes, environmental damage is a problem. Largely one that initially occurred due to ignorance and later on sustained by the powers that be because of economic reasons (read: greed).
Nevertheless, even with those problems, life today is still better then at any time in human history.
The way forward now is to find and implement solutions for those problems.
The main problem of human societies is of a moral nature, and as that human aspect deteriorates, everything else is affected. Violence, criminality, theft, selfishness, lack of ethics, lack of empathy, lack of respect, addictions and vices, etc., cannot be eliminated with the intentions of good people.
I'ld rather say that the intentions of good people is the only cure for it...
Having said that, even those aspects are better today then before.
Not in all countries perhaps. But in general, I think we see enormous moral progress as opposed to the past.
We no longer keep slaves, we no longer think racism is acceptable, women are considered more then just breeding vessels and cooks, etc.
On the other hand, atheism and dictatorial governments go together and those are are not the solution to human problems.
That's ridiculous.
Look around the world today. The higher the religiosity of a society, the more dictatorial it tends to be.
In fact, literally every theocracy is an authoritarian form of rule.
Meanwhile, secular democracies like we find in Europe, Japan, etc are amongst the nations with least religiosity and the highest standards of living.
Authoritarianism is where we find dogma from the top down. If you think that atheism is the main problem in a country like North Korea (where the Great Leader is to be worshipped as if he is some kind of god), then you should really inform yourself a bit.