MKG's fit with the Wizards wouldn't be as poor as Turner's with the 76ers, which is really about as bad a situation as he could have been dropped into, but it wouldn't be very good. As great as the last month of the season was, the Wizards still aren't a great or even good team, so their identity isn't set in stone and no one other than Wall should be considered untouchable. However, it's more likely than not that Kidd-Gilchrist would be spending significant amounts of time playing next to Wall and one or two big men who aren't very good shooters, and it's fairly unlikely that a sharp-shooting, shot-creating shooting guard winds up here any time soon.
As a result, it would be worth it to take him if he's head and shoulders above the other players who are available, but if he's just a little bit better than someone who would fit much better in D.C., the Wizards should pass on him and sign someone like Nicolas Batum who might be a better fit for the team.