That argument does not really hold much water. The fact remains that you are portraying the same person, so these arguments which Intel wanted to avoid would still come up. Considering that, they should just have gone with the real guy.
Most people are able to act as themselves quite competently! For a TV ad featuring a person as themself the requirements are that you are that person ...
Unless you're under the impression that Ajay really does strut around Intel to the sound of screaming girls, "acting as themselves" wouldn't really be what they'd need to do in the commercial.
