I know people who work for pharm companies, but they all got board certified in their specialty first.
The problem in that industry are the constant mergers and takeovers. Once you are in one of the higher salary brackets, you can loose your job during one of these in an instant. If you are BC, you can allways fall back on a 6figure job in clinical medicine. So, right after medschool I don't think it is such a great career move. That said, one of my attendings opened a GP practice and ran it for a couple of years before he went for a residency. That way he could afford it, you know back in the days when you only got room and board as a resident. So, if it pays well, it might be an idea to build some capital before residency.