> It's a bit like worrying about establishing your 
    > religious bona fides if you're a bishop

I have created a whole lot of software for money. None of it gives any insight in to my conscience.

A better example would be trying to establish religious bona fides as a result of being a carpenter who makes church pews.

To beat the analogy to death, only if people came to church primarily for the pews. The reason every bishop would have religious bona fides is because the job inherently requires the conviction. You wouldn't be a security researcher/engineer if you didn't believe in building secure systems. A web developer might be a carpenter in the analogy, sure they might be religious, but it's not inherent in their job.