1) IBR Repayment Plan - google for calculator
2) Public Service Loan Forgiveness
The combination of these two programs ensures that any student who wishes to rack up student debt to go into public service can survive, with or without school-funded LRAP. An IBR repayment schedule can include PLUS loans, and is qualified under the PSLF as an acceptable repayment plan.
Playing around with the calculator...
Married w/1 Child
$160,000 debt + $85,000 salary ->
$540/month -> $64,800 loan payments over 10 years before wiped by PSLF
$160,000 debt + $50,000 salary ->
$250/month -> $30,000 loan payments over 10 years before wiped by PSLF
Single w/0 Children
$160,000 debt + $85,000 salary ->
$840/month -> $100,800 loan payments over 10 years before wiped by PSLF
$160,000 debt + $50,000 salary ->
$420/month -> $50,400 loan payments over 10 years before wiped by PSLF
An LRAP program like Northwestern's which expects you to make a contribution based on your adjusted income will probably halve these payments. Some LRAP programs like Duke's do not include coverage for PLUS loans, which if you have debt this size is a certainty. Some LRAP programs do not provide coverage for 10 years, Columbia GSB's only goes 5. I don't have the data in front of me, but I believe Wharton's only goes 3.
If applicants bank hard on LRAP, they are probably left with the predicament of needing to get into an ultra-elite with LRAP or a much lower ranked school that will give them substantial funding. These two programs make more schools viable in the application equation, specifically Booth, Sloan, and the 11-20 pack.