Greed is never a good thing in all cases, it's just because of greed that many people choose to invest in shitcoins, they want to make money fast, make a lot of money, and very few people achieve their goals when they are too greedy.
If you want to have a lot of money instead of being greedy, you should have an investment plan and choose less profitable assets like bitcoin, but in return, there will be safety for us. I can confirm that all of our investment mistakes are rooted in greed, so it cannot be said that greed is good.
I think that's a wrong approach. We are in a liberal world and that means greed is the key factor to unlocking the world to you. Being poor means that you can't do many things this life offers you, and during our age there are so many things that you could do which you fail to achieve if you are poor.
So that means greed is good if you can do it, if you are greedy and make money from it then it's a good thing, glad that you did it, I wish I was more greedy and took some risks for example, but if you fail at it and lose money because you are too greedy then of course it is a bad thing. That's the sort of situation I am in right now, not entirely sure about them all.