Its a human blind spot. A lot of people confuse wealth for intelligence. In lower socio-economic levels, succeeding involves a lot of intelligence. Its a fucking struggle. Lots of fish trying to eat each other and take what little resources we have. One fuck up and it's all over. So anyone that is succeeding is also someone that with enough intelligence to foresee pitfalls and avoid them or escape with their wealth.

Those values are used to evaluate the people at the top which are swimming in a whole different pond. The neopotism and safety nets built into the upper crust of society is not part of the calculation that a lot of people use to factor into how they see these people. They still apply the same dog eat dog mentality to the upper crust of society.