I think you kinda went with the female perspective here, which is probably mostly based around women trying to form an informal hierarchy over who is more important based upon looks, so lemme mansplain things how I see them.
Back in the hunter gatherer phase, you're in a zero sum game against nature, while capitalism within a civilization is a zero sum game against each other.
Once you factor in things like there being a debt based currency where the principal is higher than the actual money supply, you have indentured servitude by default where someone is always trying to pay off an unpayable debt. People being locked in the equivalent of slavery is obviously going to bring some inevitable resentment aka envy.
You can either fix that problem with socialism (not really a fix, usually makes things worse), or by attempting to become as self sufficient as possible where you're not forced to compete in a zero sum game. In other words, you're trapped in a system designed to bring out the worst in humans by default.
I do agree with you that the system itself pushes people to the worst side and I really do not believe that socialism would make things any better. Actually I do not believe any system to be able to solve those problems. I do believe in individual humans who can improve and develop themselves: their inner world, perception, skills, reasoning, decision-making, etc. I DO think that it is highly important to become as self-sufficient as possible, I just do believe that an individual is able to decide to improve the quality of his or her life and achieve things without oppression against others. :)