Technology Most of the develpment that we have access to comes from the T class See Macca's examples
Expertise... those guys develop the new techniques... eg Wild thing... the stuff trickles down.
You need heroes or role models... Its a thrill to meet and compete against your country's best in a regatta that you attend.
Kids need to be inspired... the Olympic guys fill that role.
The top guys in your non olympic class have spent lots of time in the Tornado class.
Randy S, Jay G, Lars G, Pete M, Bob H, Pease G, now in A class
Greg and Jaques B, Nigel P, Matt S, F18's and N20's.
They set the standard and force you to raise your game.