Create a gameplay trait like creative visionary

I was thinking creating another trait who increases the chances to paint/write masterpieces/bestsellers by like 20/30% would be nice , so that our favorite sims have the best chances to make one and no other .

It would be especially good sims who for some reason have everything to make masterpieces but make one like 1 out of 3 and another sim make like 5 in a row with less chances to do .