Are people naturally greedy?
As far as what Ive learned a lot of socialists come from a presumption that the capitalistic behaviour of seeking the most beneficial conditions for themselves on behalf of others and endlessly accumulating wealth is something that vast majority of people wouldnt naturally do and if you just eradicate people that do it and spread ethical system that views it as not okay in any context, then it will naturally sustain itself.
But what if its not true? What if egoistic behaviour is actually most natural and we just seek good feelings whether they might come from empathy or whether they might from time to time be overbeaten by accumulation of wealth and benefits. I especially see it when looking at little children or animals. They all naturally tend to do things that are greedy and egoistic and we have to teach them ti not act like that, children will eventually grasp it but I will be forever taking away my older fat cat after he has eaten all his food to not steal food from the smaller one who eats slower. I had a hard time teaching my dog that I bring plenty of water to the dog park and that he doesnt need to guard it from others yet he is still nervous about other dogs drinking from his bowl and when he sees that other dogs have bowls he happily throws himself in and drinks as much as possible, the same goes with toys. So it kinda comes to me that we have both social and egoistical tendencies and with higher intelectual ability we can additionally calculate the benefits of not acting selfishly with the intention of actually maximalising our own happiness.
I think that this is a big deal because I didnt yet encounter another mechanism in libertarian society that would prevent people to act capitalistically, prevent scarce talents like brain surgeons to take bribes, which can still be in scarce materials if you abolish money, and than accumulate those scarce materials that grow in value with the growth of economy and essentially joining a net of black trade and even building employment, all of which can be done secretly while the person doing it can be popular.
This is not some scifi, in my country which experienced a period of bolshevism it was a well known thing that certain people who operated with scarced goods or did scarce services had a better life, enjoyed more wealth and had secret authority among society around them that wanted to keep as good relations as people sith such person. And that was a system with central authority trying to eradicate capitalistic behaviour as much as possible and its theoretical weakness from natural greed lied somewhere completely else - in the people who formed the government.
So are there people that believe that natural greediness might be more present people than what other socialists assume and what are the mechanisms that you believe will keep it at check, or at least keep it from becoming normalised again in the society?
Also do you think that this position on human nature is what essentially may divide libertarian left between those to be more lib-unity (therefore more willing to unite themselves with libertarian capitalists than authoritarian socialists) or left-unity?