There's nothing wrong with the concept itself, but VC arguably looks more ugly in VCS with all of these random buildings over the place.
Well the timeline was before VC, so if you really think about it. VC is the one with all the random buildings because it's taken place during a later year; If there is any new buildings added it would be in VC.
(OFF-TOPIC) I like those kind of games. In SA you take over territory, in VCS it's Empires, In Scarface you can tell your Marfia/gang what to do(in the game), Godfather you get to rule the mob and tell them what to do, etc... Do you get what I'm trying to say?
I'm not saying every GTA should have something to ' Take Over ', or ' Rule ' but it let's the player have some power, rule, and dignity in the game.