I think, "being a decentralized asset" is what make a cryptocurrencies more powerful. No powerful entity or authority hold this; no centralized manipulation. The fact that is decentralized, we are also anonymous in our own way. No identification records in every transaction.
I do love this kind of invention, kuddos to Satoshi.
I agree, since there is no one holding or controlling cryptocurrencies it is a good asset. We can do what we want with it depending on the person. Anyone can do this or invest in this and at the same time crypto currency is powerful for that reason.