Isn't this like, the point? You get a scarcity in the beginning so you have to choose which path you wanna go down. You can be the talky guy, or the lockpicky guy, or the trappy guy. But not all together, at least not in the beginning. By the end of the game you become the ubermensch that can do everything. Or enforce that you rely on your allies. You can pretty easily get one of the other two rogues to be your walking lockpick.