People copy other successful businesses all the time. Granted, it takes some time, but innovative business ideas become mainstream if they're successful.

Keep in mind that changing an investment strategy is simply changing the algorithm used. If I was running a fund returning 7% yoy, and yours was returning 10% yoy, you bet I'd be telling my staff to try out your algorithm.

Magellan was the biggest fund in the world until other funds adopted their innovations and it pretty much reverted to the mean.