Board Thread:Sly Cooper series discussion/@comment-25166563-20150712082102/@comment-3422950-20150719052602

To be fair we know very little about Penelope so we can't really say if her heel turn is out of character. Dimitri on the other hand is more of goof ball character so if he heal turned it would not have been much of a impact.

Penelope was a love interest and far more of a threat to the gang with her smarts. Plus she has a history of deception. She also had a lot of money and power with her   deception  maybe she wanted the thrills she once had but her now exboyfriend was not on board because of Sly's beleifs which he shared.

I think if any thing Penelope or even Panda King make more logical targets then a (let's admit it) rather dim, shallow and silly goofball badguy who really has little to offer as a real treat to the gang. Sly petty much is the reason he has all his money, fame and ladies. Plus he got back something that seemed to be very important to him. He is more like the gang's comedy relief sidekick.