Sin of conscience?

Recently, our church leaders decided to "merge" with another congregation. Merge is an interesting choice of words since there is no merger. We were told input would not be taken, but they

We were given the "traditions are meaningless" sermon by our soon unemployed minister last Sunday. Following soon should be the Rick Warren's example "if you don't like it, leave". Which is sad for those whose faith and resources have built and sustained the church.

One of our church shepherds is known to say "if you don't change, the liberals will leave. If you do change, the conservatives will stay but complain". He tends to go for the butts in pew approach.

So now I come to the question of the day. Is there such a thing as a sin of conscience? By this I mean:
1. Would be a sin to violate my conscience to give up on what I believe to be scriptural traditions?
2. For someone with the opposite view, would it be a sin for them to violate their conscience by not standing by their beliefs on scripture?

I am leading towards yes on both. If either of "us" were to violate our true principals on what we truly believe would not be a good thing.

This new merger brings changes to worship, leadership, and the overall purpose of the church. All of which are admittedly "new ideas" in the eyes of the incoming church.

I'll miss that place, but it's just a place.