$400 million could be less than $200 million after tax. That's a lot if all you think about is consuming your wealth. But if you're looking to jumpstart something in billionairesville, it's quite different from $2 billion.
So what you say is that it depends if you're a decent human being or not. Can you live on $1 million a year with a roof over your head, food on your plate, clean water to drink and some extra comfort such as heat during cold season ?
with $200 millions you could give away half of it and live happily on the remaining for a century. With $2 billions, the only difference is that you could give away 95% of it and live happily for a century.
