It's not really like that. The opt. pvp servers are more populated which increases the community and spawnrate. People who act like douchebags are usually lower leveled or just douchebags (they do exist on open pvp servs too). The thing with open pvp servers is that if you disagree on something, you're pretty much dead. On opt. pvp, if you disagree on something there's an argument where one person stands as a winner of the mind. And winning a heated argument is much more refreshing and rewarding then having someone attacking you if you don't share the same thoughts and the other person.
Noobs are spread across Tibia in all types of servers, but a noob with power causes more harm on a open pvp server then a noob on opt. pvp server.
I did not make this thread because of you. There's a bunch of people who generally dislike opt. pvp servers.
Answer: That really depends on which server you play on. There's not so much "leading guild" as a "host services guild". Money doesn't get you power anywhere. But if you want to host services and so on you need to have some skill. You need to prove that your guild can guarantee safety and guidance to everyone participating. But if you let a few members die during a service people will spread it around and eventually none will go on services hosted by that guild. And there's usually people trying to ruin services in order to compete to be the one and only service provider for a server. But on other servers there's several guilds doing services and such without any hassle from eachother.