You are only as successful as your social network is. In business you could be forced to participate in social activities that really are religious activities. For example you could be asked to attend a company's sponsored party where it really is just a religious activity. What if it goes against what you believe? If you don't attend some one might point out later that so and so did was a no show. This would be a real dilemma; I would attend and just would be on my best behavior manners wise. You don't have to agree with everything that goes on, but as long as you are respectful, you should be o.k.