Rebuke

The process of criticism is so pervasive that most of us have grown weary of rebuke.

We feel almost entitled to do as we please . Yet the Talmud in Tamid says that sincere critique is what puts people into their proper place . The one doing the exhorting is rewarded to be near G-D.
So why do we despise such men today?The answer lies in the fact that those who criticize today aren't righteous men. rather they are sadists who look for a legitimate way to making others suffer!
So why did Moshe choose the route that was unpopular and ultimately ineffective?

Because when the critique is true and not demeaning, then the person being berated feels the truth and acts accordingly . In that case the rebuker has done the other person a tremendous favor.

Moshe did this not because he wished to scold . Rather he wanted to elevate us even during the last 40 days of his life.His hopes partially came true and that generation entered the Promised Land on the mission that Moshe had made them ready for.