Well any kind of investments is a risky thing. But cryptocurrency has always been "a bit riskier then others" due to price mad volatility. Nevertheless lot of people doing amazing profit with that sphere.
And if you are not about buy-sell, I don't think Bitcoin do any treat to you or the world in general.
Bitcoin is always risky when the time we invest on it, yet it is still show a great pottential to triple or more our investment. We just have to be ready of any possible results either it is bad or good in bitcoin. I still believe bitcoin price will rise again and holding our coin for a long term is worth it.