I've actually met quite a few good owners in my days on Minecraft. I used to play on this one survival server, and the owner made it her duty to welcome every new player. If she was offline when they joined, she would greet them when she came on. I also used to know another server owner, who coded most of the plugins on his server, did most of the advertising, and did all of the web design.
Not all server owners are what you described, although a few are.