Or maybe they're just more honest.

Philadelphia Inquirer | 09/19/2006 | Survey: M.B.A. students more likely to cheat :

A survey of 5,331 students at 32 graduate schools in the United States and Canada found an "alarming" amount of cheating across disciplines, but more among the nation's future business leaders. Fifty-six percent of graduate business students admitted they had cheated at least once in the last year, compared with 47 percent of non-business students.

Nawww. Cheating makes more sense.