Bitcoin helps the poor. Thanks to bitcoin, many people were able to find a source of income and this is a huge plus. In fact, not many people pay attention to it, but I think it is very important. Much more important than the integration of bitcoin in real business, anonymity and so on.
I don't think they should fully depend on bitcoins because of its unsecured daily profit whatever work they are doing plus investing and trading bitcoin and altcoins are rather more complicated and risky.