Nope, wrong!.. These people all have fans, and those fans buy the products then tell two friends. And two more, and so on and so on.
They are very valuable!
Take Paul Rodriguez as just one example, Skateboarder: who the heck is that?
His Dad is the famous comedian, Tv show star, stand up star etc.
And Paul's advanced through skateboarding games into the million dollar player status, in a blink of an eye. Dew tour's, FX games, TV commercials, etc.
They sell product!
and jeez when ya want to talk about pain in sports!,, trust me,, Skateboarding is the top of the list! a must do, NO Pads!, No helmets!,, and concrete!