I keep reading people talking about billionaires "hoarding" their money, as if it was just sitting in a vault like Scrooge McDuck and not being reinvested in countless businesses, while only a small percentage is going towards their 'luxury' lifestyle (which they also assume goes all into useless flashy cars and fashion like lower-tier wealthy celebrities they see on TV who also frequently happen to end up broke... for some reason).

We should tax that consumption, not the investments the return value and therefore jobs, technology, science, etc to society). Or focus on the far wealthier corporations who pay no direct tax through various financial trickery and/or incentives to off-shore it instead of keeping it locally to spend (although most still pay tons in taxes through other means).