Helping people is what we do if we choose. Thats automatic to a lot of people. They just do it. The Tag only points people in your general direction it doesn't isolate you as the only one who can help. I started without one, helped people, I got one still helped people, I lost the tag and guess what.. I STILL help people..
So you judge if the tag is really worth worrying over. Its nice to be recognized by the community. But to help people doesn't require one and that is the ENTIRE reason to mentor people.