Ball tampering - Is this worse than the underarm incident of 1981?

Both moments of madness were triggered by a captain's desire to win. Greg Chappell told his brother Trevor to do something legal but obviously not in the spirit of the game. The incident at Newlands was both illegal and not in the spirit of the game; it was the team's most inexperienced player carrying out a premeditated plan hatched by people who should know better.