steem .... no future

Having read several times the whitepaper of crypto- currency I find it very difficult to understand the mathematical logic behind the creation of money .
I must say that the idea is good but give consent to the transaction blockchain " decentralized " means the users of the social has not yielded .
The user can influence the blockchain in a wrong way , this is due to the fact that it has a gain in the interaction .
I also wonder how does one understand steem as a decentralized platform?
For me a decentralized system should not be allowed in any way to anyone going to affect a transaction .