Why do people want to be dishonest?

I enjoyed looking up information on Wikipedia and hate to hear that people in such high positions are using such unethical behavior. I do not believe however that any of us can trust Wikipedia any further until the process by which Wikipedia allows individuals to post correction or additives is changed. Why wouldn't they want their names or their User names to be listed unless they are up to no good? Therefore my proposal would be that Wikipedia needs to consider finding some way to monitor the posts in order to maintain the integrity of the site. Perhaps they should force people who wish to make posts to sign in acquiring a user name. Or if they do not wish to have User names they could cause the person who is trying to make a post to attach their names. Other than that the only way I see Wikipedia regaining its credibility is to possibly attach the site to an actual encyclopedia website, so that the information can be checked before it is posted. It is so sad that this type of thing has to be monitored, but as usual a few people ruin it for everybody.