Wealth isn't some finite quantity that is merely taken or traded between a group of individuals. This is highly ignorant of economics and is a worldview that sadly what drives a lot of hysteria around wealth inequality (that when one person has more wealth it means they deprived it from another person who would have had it otherwise, combined with the idea it just sits there in a bank account not being used or it's all being spent like a consumer).
It is not a given that massive wealth accumulation involves depriving others of wealth but it's also very often the case.
While it's ridiculous to view wealth as a finite thing, it's just as ridiculous to imply hysteria over wealth inequality is based in ignorance. There is a long-standing trend of capitalists treating lower classes as exploitable resources undeserving of the means to have a healthy and happy existence beyond what keeps them productive inside the constraints of the current system.
Median salaries haven't been stagnant while the rich get richer because that's what's best for everyone, it's because that's what's best for the people with control.
Just for the record, many people who oppose and criticise massive wealth inequality are fully aware of the basics of economics (or even advanced economics).
