That's a very limited view of what you do, Ram.
Both technically and otherwise, consulting firms are no less a Corporate entity. If you are talking about getting into a line HR (support function) role as compared to the business fuction (as a Recruiter), its fine. Its a choice you make on what kind of learning and growth you're looking for.
If you're looking for a comfortable job, perhaps, your supposed Corporate move makes sense. But if you're looking at enhancing your employability in quantum leaps, this shouldn't even be in your consideration. Especially when staffing industry is still in its nascent stages... I would imagine you're in the right place, Ram Prakash.