That's not a statement of fact, it's a tautology. You are responding to an interesting statement that unpacks to "Economically high-performing musicians are mo

That's not a statement of fact, it's a tautology. You are responding to an interesting statement that unpacks to "Economically high-performing musicians are more a product of industry effort than an indicator of technical skill ("good at music"); You will find abundant technical skill distributed widely in economically unproductive musicians." You're staking out a semantic position, to wit: "technical measures of musical prowess are not valid, and I refuse to use the word 'good' to describe high rankings in those measures. The only meaningful metric of worth is economic productivity. Therefore, a tautology: Economically productive musicians are economically productive". This is a reasonable semantic usage, but is a less interesting statement.