How much more would I have to pay in taxes?

"Best of all, they shift the risk of career shortcomings from student to investor: If the graduate earns less than expected, it is the investors who are disappointed; if the student decides to go off to find himself in Nepal instead of working, the loss is entirely on the funding providers, who will presumably price that risk accordingly when offering their terms."

Why is this 'best of all'? I wouldn't loan money to this type of program, there is no incentive on the recipient to pay back the money.