The decentralized nature of crypto, or blockchain in general, means that it doesnt rely on a central point of control. And it is the lack of single authority that makes the system fairer and considerably more secure. Also, these decentralized networks provide economic incentives to maintainers, developers, maintainers, and other participants in the form of cryptocurrencies, either coins/tokens. And so the better the platform, the more its tokens are valued. The network participants have an economic interest to work together toward a common goal the growth of the network and the appreciation of the token.