Any contact you can get with crews directly, however that may be achieved, is more helpful to you that no contact at all. Whilst it may not be as financially rewarding, working within the aviation industry in almost any capacity is also more helpful than working outside it.
I know a number of people who have progressed from various positions within the industry (ops, dispatch, cabin crew, instructing) to a flight deck position, and all this since 9/11 and with less than 400 hours. It can happen, but there is still an enormous element of luck involved too.
However, just be aware that while getting your name and your face known within the industry can be helpful, it can also work against you quite spectacularly if people take a dislike to you, or you screw up big time. It is a very small industry and word gets around amazingly quickly. I know of one former colleague who got a poor reputation and I don't fancy his chances any time soon.