Besides, mild hazing can create stronger bonds among pledges. Don't misunderstand me. Some organizations step over the line. I have heard some fraternities on campus will make pledges drink until they throw up in a communal tub. One example of extreme hazing is the incident at the Massachusetts Institute of Technology where a pledge for Phi Gamma Delta died from drinking too much.
People are generally smart enough to notice extreme initiation rituals within a few days.
I can only tell prospective fraternity or sorority members not to be stupid. If the rituals seem too harsh, find another organization to join. The bottom line is why someone would want to join a fraternity or sorority. Once someone is a member of a Greek organization, they get out of it what they put into it. If they want things such as brotherhood, academic excellence, cultural awareness and community service, that's what they'll get.