Wikipedia is known for propaganda, so if you don't agree with what the "majority" of the article creators and maintainers are saying then it will probably get removed. The propaganda though is not universal its relative to each article.
These is there politics I ask one of the moderator and spam fighter.If they see advertising on the site 99,999999999% of the cases the link will be remove, even if the site offer quality content. You link remains, if you are very lucky and are no other links and complete information on wikipedia about that subject.
It really depends on the link. The problem with Wikipedia is defending links. Any editor can remove your links on a whim but you can't defend it because it will transpire that its your site that your linking to. That way can give you a bad reputation. What's needed is a disinterested editor to fignt your corner.