That's disregarding for a moment that most European nations are socialist. Not sure what exactly here you're fighting for, but I see that you don't really understand how hard it is to become rich.
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It's difficult to have a daughter-of-federal-reserve-banker mother who is in the same 'fraternal organization' as the president of IBM and who can ask said president to buy your son's operating system and bundle it with their new 8088-based personal computer platform. Especially if said son doesn't actually have an OS to sell. If one achieves that, one still has to come up with an operating system. Just have to come up with $80k to buy 'Quick-n-Dirty OS', itself a knock-off of Gary Kindell's CP/M, from the computer shop down the street. And re-name it something like MSDOS.
As far as I can see Gates was coddled and bailed out of his own stupid mistakes (e.g., Microsoft's reaction to 'the internent') numerous times and had a lot of help at various junctures in order to 'become rich'. He also seems to be of 'pure-breed stock' so to speak. It's possible that these two things are related. Indeed, it seems unlikely that they are not.
Actually a fair number of today's ultra-wealthy seem to have a similar lineage profile when one digs down into it.