Is necessary to destroy the existing government?

[QuintusSertorius]

So is cheating, doesn't mean its better. Besides as I said, regardless of who built all government buildings (except for nomad ones) can be shared between any faction. If you are a greek faction and you conquer a celtic province with a celtic government you can still use it just like your own. However using it is still considered an exploit.

Foot

I know it's an exploit. I know it's "cheating". I was just saying from a pure efficiency viewpoint it's the optimal choice.