To tell you the truth I couldn't tell you if the ads are there or not. If they're present I sure couldn't tell you who the advertisers are. I've done a pretty good job of training myself to ignore them and it's been many years since I've actually clicked on an ad on any site. It's even rare any more if I could tell you an advertiser I've seen or heard on tv, the internet or radio.
As long as the ads aren't so intrusive as to take the middle of the screen while they are playing and delay the game unnecessarily, to me it's no big deal. If WGT allows players to continue to enjoy the game for free by selling that advertising space, more power to them.
It's a game site. Treat those ads as billboards alongside the holes of a real life golf course. Don't pay attention to them.