It's not really greedy people. You need to understand that the price is actually what PEOPLE are willing to buy BTC for.
People buying Bitcoin for $10,000 and thinking of $40,000,
what is this ?? Greedy or gambling hub or ponzi scam ??
Last month I got $20 only from online surveys.
Worldwide people do $500/month to $1000/month jobs. Working for 8 to 10 hours/day.