Some jobs do not create wealth. Cops were mentioned earlier.
Most government workers
Auditors
Repairmen
Bank tellers (remember them? Human ATMs)
Persons who work in large retail stores
Soldiers
Your example of the band - I think as the lead singer I should get the most $, the drummer thinks people come to see him because the girls always love drummers, etc. What about the people who help set up the band?
I'll go with the present system, your pay should be related to who you know. Everyone decides how much ass they want to kiss.