Sri Chinmoy: If you are a truth-seeker and a God-lover, then it is absolutely the proper attitude, for it means that you have enlarged and expanded your inner capacities. You have established your oneness with other competitors and you are helping them. By helping others, you are increasing your own power of oneness. From the spiritual point of view, you are doing absolutely the right thing.
If you live only in the world of personal success, then perhaps it would be a mistake for you to teach others. But if you live in the world of your own inner progress and if you are for the world of universal progress, then undoubtedly you are doing the best possible thing.