McK will bill $3 million, the 23 year old may get at best same as your $100k salary. Which makes everyone feel sour, esp the youngster for getting 3% of what their boss charged the client...!

The person billed that for the consulting company, but I doubt they got that much. Consulting companies burn both ends.

If you look at entry-level consultant salaries at McKinsey and then divide by the fact that they're often working 7-day, 100-hour workweeks... you'll quickly discover that your "23 year old snot" is actually making around minimum wage on an hourly basis. They could be flipping burgers instead with a lot less stress.

The consultants aren't the ones taking the money home, the firm is. So don't blame the 23 year old. He or she is honestly just doing their insane best to pay off their huge student loans.