Yep and I think unfortunately people don't understand human nature because they look at themselves and look at their neighbours to estimate it... But human nature is very different when evaluated from the centres of power. Humans near the centres of power are fundamentally very different from those on the periphery. There are powerful selection mechanisms at play.
I used to think success was mostly about luck but now I think there are selection mechanisms but they're not selecting for what people think. Selection is not based on skill or hard work.
I think there are different life strategies that humans use. Some people need to survive based on skill more than others. The most obvious cases of non-skill strategies are the ones where people make a living based on having a certain physical appearance, or else live off of inheritance.
This might be controversial but I think rich and powerful people are usually skilled. The skill might be pretty far removed from the technical, of course. But I think I can safely say that most people don't fail upward and don't preserve or grow wealth when it just falls into their laps. The skill of investing well is really kind of a planning and information-processing skill. Society generally benefits from successful management of wealth at that level, even if we on the bottom of the pyramid detest extreme wealth of those on top.