500k an hour over 50 years is functionally the same as 2k an hour over 12500 years or at least it would be if the person getting payed 500k an hour only got paid that for a full time pay check instead of just a continuous flow of money always.
Again, this doesn't work. In the vast majority of those years, dollars wouldn't be earning interest and would be basically considered... useless for spending anyway, and then it doesn't count for inflation, standards, or.. really anything else. It's just winds up being meaningless numbers. It'd all be worth about the time of actually counting to 2,000 every hour for 2020 years.
It's insane to have that much money though. I dont think I'd ever want to be that rich to be honest