This was said long ago, but applies to people in the news today
Nearly all men can stand adversity but if
you want to test a man's character, give him power. -- Abraham Lincoln
I believe Rabbi Boteach would phrase it differently (my interpretation frm an article by Boteach on Edwards, not a quote from Boteach)
if you want to test a man's character, see how he handles adoration.
I think both versions have merit.