Fans of Mario know that the short and stocky italian man was and always has been a plumber. Before he spent his time mercilessly killing mushroom creatures by jumping on their head's to break their necks and render them out of existence, he was fixing the pipes of clogged toilets and possibly installing sinks. Now, sure, his job may not have been exactly too glamorous, but his work helped him to pay the bills.
Now on Nintendo's official home page for Mario, his profile has changed. "All around sporty, whether it’s tennis or baseball, soccer or car racing, [Mario] does everything cool. As a matter of fact, he also seems to have worked as a plumber a long time ago..."
"Worked as a plumber a long time ago" kinda reveals that he was either A). fired because his boss needed to make some cuts, B). he and Luigi were self-employed and buisness sadly shriveled up, or C). Princess Peach paid a crap load of money for his life saving services that he's provided her over the years.
Either way you slice this, it's clear that Mario is no longer low on the totum poll financially. He's now swimming with the big fishes and making big moves.
Respect.