Who gets decide what is "good" for us? Us. It's our society, and we would have to give the keys away to have it be any other way. Democracy is the default, the resting state, although looking at history, you wouldn't guess that.

Since time began, people in power (read: wealthy), and their apologists, have tried to argue against it. But slowly, since the Enlightenment up to modern times, these kinds of arguments have fallen more and more on deaf ears. The more it was tried, the more the results spoke for themselves.

The last time I heard "tyranny of the majority" said with any seriousness, it was in the context of why South Africa should not end Apartheid. Democracy is something we've figured out now, finally, thankfully. There's no going back.