760 GMAT, but epic fail in Round 3 - What Now?

GMAT: 760 (49Q/44V)
GPA: 3.63 (ivy undergrad - chemistry/econ); 3.40 (top 5 law school)
Age: 32
USA - Living/working in South America for past 4 years

I applied to Harvard, Stanford, Wharton, and Booth in Round 3. I applied Round 3 because I took the GMAT in late December, 2012. I got rejected by Harvard and Stanford and obtained interviews from Wharton and Booth, but got rejected at Wharton and am expecting a rejection from Booth (phone interview that did not go well).

Background: As a result of a poor decision in undergrad, I went directly to law school and worked as a corporate lawyer for several years. I left that life behind 4 years ago to pursue my interests in social enterprise in South America. I the process I became fluent in Spanish and now manage microfinance projects across 6 LatAm countries for a tech-based startup company. In my new career I'm advancing steadily and now oversee one other person and I have 30 months of experience. In my old career (law), I had 34 months of experience.

I'm seeking an MBA because I hope to advance to the next level (manage teams, drive strategy, launch a microfinance bank, etc.) in the social enterprise/international development space. I plan to remain in Latin America long term.

Extracurricularly I've launched 2 startup companies in South America, one of which has annual revenues of about $100k US. I used to be a semi-pro runner while I worked in the law firm.

My main question is, now what? Should I take a shot next year in round 1? I applied aggressively in Round 3 this year because of my age. I'm 32 now and will be 34 if I start in fall 2014. Will schools consider my age in terms of my new career rather than my chronological age? Or am I screwed because of my age?