Democracy isn't and shouldn't be absolute.

And you do realise that no countries have complete democracy? Even Switzerland with their many referendums doesn't put every decision to a democratic vote. Partly for practical and pragmatic reasons, but also because some things are best not decided by the masses.

The government frequently makes everyone do things they would rather not do because the aggregate result is good. And the results of the collective action make everyone happy to the point that the law is supported. That's the basis of all tragedy of the commons based laws.

The clear point is people that don't "give a shit" about the environment or their fellow people are not the majority and so the government should continue to make environmentally lead decisions regardless of the existence of sociopaths.

Democracy has many flaws, you just identified one of them.