Student debt isn't an entirely new issue. Back in the late 90's when I graduated, some people were coming out of school with very large loans and some weren't. My wife and I graduated with $15,000 or $20,000 in debt and paid it off in a few years. My wife drove the same car she had in college for the first 5 years of our marriage. Simple recipe for payoff, live cheap and work hard.
I feel like my mortgage is stifling my innovation and wish someone would pay it off for me. Unfortunately, the govt can't and shouldn't do that. Instead, I've made a choice to pay it off myself by living below my means. At some point, personal responsibilty needs to come into play in all these decisions.
As far as "fostering innovation," forgiving student loans is just further interference into the market which will create more problems.
For an example of how you can pay off a crushing debt load from student loans, check out no more harvard debt. It's a blog about a guy who paid off $100k in a year.