Does Subbing in Alberta Make Us Scabs?

What is your opinion about taking substitute teacher work in Alberta when if I were a contract teacher I would want to be on strike? Help me stop feeling conflicted one way or the other. Who am I punishing by not working and is there any point? I want to work, I like my job and that's exactly why I feel like I shouldn't be going in. I also like the paycheque but I'm in a position financially where I don't need it right now.