Can there be a perfect government?

Sure, as soon as you can get everyone to agree on the same idea of what is "perfect".

No because there are no perfect people.

No. In the sense of perfect, I doubt the government could ever be perfect in such a tempestuous world. It would involve sacrificing too many civil liberties and would involve the rich having to curtail their earnings even more. In this world, the rich influence a lot, so that is never going to happen. Plus there would need to be some sort of population control. Eventually there will be too many people to support the entire population through social security. There are probably too many people already.

1) The rich would never give up their freedom to earn more in sacrifice for a perfect government.

2) People would never agree with population controls in order to ensure that the government can sustain its population with social welfare programs.

Well no, but you can have a goal and strive for it.

That said, you can't separate government from the system. Like, you can have a great democratic process, good candidates, and an economic system that fucks up all the good ideas.

Perhaps one day there will be a supernatural global dictatorship of some sort....

I put up with a decent one. 🙄

There can never be a perfect system of government simply because you'll never be able to please everyone.

Yes and there will be

As in Satan then yes.

No.