Never winning at the expense of others feelings.
Really? We sure have a disconnect here regarding what "competition" and "contest" mean.
What you describe is not a Contest. It is a bunch of guys who like to fly a certain way, with a certain type of airplane, taking over a flying field for a weekend and not letting anyone else fly. Why don't other people enter your "contests"? Because consciously or subconsciously, you are excluding them.
Jim