Depends on how you define the greed. If you want to get your profits maximized under a set plan and strategy by speculating in Bitcoin and holding on till the all price high, that is not greed. People hodl for years to be able to claim big profits in crypto.
That to me seems to be a case of greed too. You even refer to it as being able to claim big profits. Everything we do here is driven by greed one way or another. I legit believe that greed is good, but it's good as long as you control it and don't marry with the coin or legacy asset you invest in, otherwise it will work against you.
From a gambling perspective, greed is trying to win another game to make more after you win one and since there is uncertainty in the gambling, tying to win every consecutive game is greed and is a curse in gambling.
Trading for most people is the same. They profit a few times, like the taste of it, then trade more, lose, then try to win it back and lose even more. If you can't see every individual trade (regardless of the trade being a losing or profitable one) as a new start, you are basically guaranteed to lose your funds in the long run.
Platforms as Bitmex made things even worse with how trading has actually become more similar to gambling than ever before. 100x leverage requires a 1% move to wipe out your entire balance, and in the crypto market that can happen literally a second after you opened your position.