Well that's certain an answer. Voters and non-voters alike are, of course, free to define "the greater good" for themselves provided they refrain from harming others while putting their definition into practice, but what moral justification do the winners of an election have to enforce their definition on anyone else or harm others to implement it just because they were backed by an arbitrarily small majority of the voters? Which is a subset of the eligible voting population, and (perhaps more importantly) an even smaller subset of those who will be affected?