Board Thread:General Discussion/@comment-25819077-20150121210329/@comment-679780-20150123002436

Mario's backstory can reletively be put together. Mario was once an abusive animal tamer who "owned" Cranky Kong when he was the current Donkey Kong. Mario eventually became a carpenter while DK eventually escaped and kidnapped his lady Pauline which Mario debuted in his arcade series. Donkey Kong jr. shows Mario as the villain as he tries to kill DK jr. in brutal ways possible.

Nintendo decided to sweep this backstory of carpenter Mario under the rug and have Mario as a an Italian-American from Brooklyn who is a plumber. He and his brother were in the sewers of Brooklyn where they found a warp pipe to the Mushroom Kingdom. They rescued the princess and thats roughly Mario's backstory.

I can go on and on how Mario is evil but Nintendo has Mario as a hero for so long no one really cares. That or they do and just overlook it.