When you are seeing the amount of money that can be earned through cryptocurrency then your greediness start to rise. It is a natural process I suppose. There's nothing to be embarrassed about. So earn money as much as possible.
Indeed, but sometime need to be carefull with our own lust and it must be overcome. It can bring disaster to yourself, because it is too passionate, so you forget to think about other things that should be controlled. Often people are seen to be controlled by their greed rather than being controlled by their own thoughts.