Public services in my country (like teacher, police, nurses etc) have salary coefficients (job complexity ratio) depending on qualifications and duties. Not sure what the proper terminology is in english and if it's the same in other countries. There are socialists in Europe supporting the max 1:12 ratio between minimum & maximum income. Although, there is an old saying in my country: "They couldn't pay me so little that I couldn't work even less" (not sure about the rough translation), so that's definitely a danger of such schemes.

Aside from that, I don't really believe in the musks and zucks of the world. Our society shouldn't rely on charismatic leaders, who for all we know could be fronts for the NSA/CIA operations. Shock workers or strike workers could be used to motivate and promote labor (https://en.wikipedia.org/wiki/Udarnik).