Leaving aside Galloway’s arguable declaration about affirmative action’s popularity, the man whom Poets&Quants once named one of the world’s 50 best B-school professors definitely hit on a popular idea for a new way to ensure the diversity of college classes. According to a recent Intelligent.com poll, 1 in 3 Americans supports income-based admissions to higher education institutions, as more than half — 57% — agree that poor students have a more challenging time achieving high test scores.