Better to let ideas compete and build consensus than to surrender decision making abilities that effect everyone over to some arbitrary group of people that we are just told to trust (but don't worry they have good intentions).

We don't currently have a select group of people who share a vision of "common good" making decisions for us, and yet things keep improving. So I'd advocate we stick with what we know is working, rather than the above surrendering of autonomy in exchange for the promise of some utopia..