I'm not really going to comment on the "easy way out" stuff, because everyone here absolutely knows what that's about.
You are a wonderful, caring, compassionate woman to have those feelings about the others who are struggling. I guess it's like survivors guilt in a way. You can't be responsible for saving all these people. You can, however, be kind to them, and treat them as you wanted to be treated when you were in that condition. You can share your story if and when it's appropriate. I've chosen to keep my surgery private, but at work if one of the people here that I work with who are obese were to ask me what my "secret" is to losing weight I would tell them. It would be cruel not to I think. But, if they don't ask me, I will not give unsolicited testimony to them.
People know that WLS exists -- it's not a big secret in this day and age. Some choose not to go that route, and it is their choice. We made the choice that was best for us. There are a myriad of reasons the people you see haven't chosen surgery. You are not responsible for those reasons.
Try to enjoy your choice, your empowerment, your health. You might also consider talking with a counselor about these feelings -- just to help you sort through them. Extreme weight loss is not just about changing the body -- it can really do a number on your head as well.