The purchasing power of 1Us dollar vs 1Bitcoin clearly shows that one is going to zero, while the other is not.
When we compare Bitcoin with the best, most used fiat and most reliable currency in the world, the Us dollar it clear show that Bitcoin is on a different level to the Us dollar.
Let me show you why wealthy men like changpeng Zhao(cz), Brian Armstrong, Jed mc Caleb etc can hold billions in Bitcoin without being afraid.
These mean you have mentioned are already wealthy. They are dollar wealthy and Bitcoin wealthy. If I were the one with such amount of wealth. I wouldn't mind buying some more Bitcoins every other day. If Newbies only have more monies that they cannot afford lose, they won't be afraid of invest it.