because it's a sub-culture... a 'niche'.
just like strongman.. 99% of the guys who do strongman contests will never, ever, ever be on tv or get any kind of recognition, even in their local papers... yet they train day in and day out for notoriety amongst a few small population who are even aware the sport exists.
just like skateboarding is a sub-culture, or a myriad of other "hobby's"