If you look thoroughly, then BITCOIN is just money, but like money, can it improve the world around, and humanity as a whole !?
I don’t think “good” and “BITCOIN” are the same thing, most likely the opposite.
Because of money, a person becomes weaker, he does not need to do something, to develop, because money will do it for him.
Bitcoin can be considered as a virtual digital money which can be used by it's user. The user can use it for good or bad ways. There are many ways to earn more through BITCOIN which is obviously good and will work for your financial support. Likewise, you can use it for trading, you can be an investor etc.
On the other hand, it can be used for bad intention to destroy yourself or others too. You can hire shooter or you can do many bad things through using Bitcoin. You can also buy drugs items by using it.
Here, both parts already described and for those only it's user will be responsible for it. Because only it's user can make the decision whether it will be used for good or bad reasons. Using it in a good ways can make person's life better.