I think you should go read the list you yourself decided to link more carefully. You will find many more than 4 billionaires who grew up with at most a lower middle class background.

It looks like you're struggling with reading comprehension, so let me make it more clear. The article takes the position that viewing individuals in the billionaire class differently based on their individual story is wrong and provides a means manipulate people into viewing them all homogeneously. I do not "tolerate lavish wealth" or think these people should have so much command over society, that is the subjective word choice of the authors to describe their interpretation of a phenomenon, but I personally do think many of these people who come from very little deserve more respect and success than wealthy scions who, at best, have every advantage, or at worst, do nothing at all with their lives and yet command extreme wealth.