Plenty of people in that situation who aren't Bezos rich, no?

Makes me think that explanation isn't sufficient.

Why's that?

Same. There's no gold standard, money is a social construct.

I wonder if the people who think like this, also assume "if bezos had less money, I'd have more".

If you already have enough money to burn, you can put money into various high risk areas and win overall.

That's the angel investor strategy.

There's also lower risk index funds, that simply invest in the biggest N companies.

For self hosting?

Looks like the author is still active and looking for funding: https://github.com/TachibanaGeneralLaboratories/download-navi

But development seems to have stopped indeed. There is a fork, with new developers, that is actively being worked on: https://github.com/Davilarek/download-navi

GIMP is such a workhorse and a pleasure to work with.