How exactly am I easy to control? You are completely wrong here, friend. It is attachment to self-interests that makes beings easy to control, not the other way around as you posit. If I am in a position of power and I know what your attachment is, be it money, fame, respect, etc., all I have to do is press your button and I instantly control you.
I would be very interested in your explanation of how you'd control anyone who was free of selfish attachment so that I may put you right.
Wait... seriously? I am not sure you know the difference between self-interest and selfishness. Obviously if you are selfish you will be easy to control, because people can do a simple thing to control you as stated. You are much easier to control without having self interest though. If you are no looking out for yourself, conforming to a community, allowing people to walk on you, etc, you have little self-interest and therefore are easier to control. If you care about your freedom, spirituality, Self in general, how will someone control you? If you are selfish, you only care about yourself, and usually some very specific things. People can control you through such things.
Go ahead and "set me right". Or get off your arrogant high horse and look up these concepts so you know the difference. I am not a first grade teacher, I do not have time to explain and define such unbelievably simple things.