The rationale behind the voting systems are full of flaws and fraud, in our contemporary society the voting system is not in any way perfect , as it is been manipulated to suit some particular interest. Then coming to decentralize system like blockchain those that are early adopters and those that has larger stake in such .

Do use it to influence their own selfish interest, just as in steemit where the whales and dolphins use their steem power to self vote themselves and also to vote for low quality contents just because those creators are their friends