There is currently a conspiracy theory circulating around the web about both the Mushroom Kingdom and the Pokemon World being corrupt to the core, and that everything was rigged against Waluigi, Red and Ash Ketchum right from the start.
Waluigi's designer, Fumihide Aoki, is a Camelot employee and not a Nintendo one, unlike Wario's designer Hiroji Kiyotake, who also designed Metroid's Samus. This resulted in Waluigi being treated as an outsider who does not belong to either the Mario series or Wario series. Charles Martinet claims that Waluigi wallows in self-pity, because at one point in the Mario Party series, he actually had the worst luck of all the characters in the Mario Party games, not to forget that his only solo mission without Wario in Mario Tennis: Power Tour may have ended in failure, which explains why Waluigi is never seen without Wario in the Mario Tennis titles that came after Power Tour. This is why Waluigi feels that everybody is cheating, and that he needs to cheat in order to win.
If a comic once found on the now-defunct website of Dorkly was anything, the Pokemon World is also just as corrupt as, if not more corrupt than, the Mushroom Kingdom. The Dorkly comic in particular shows that the Red that defeated Blue was a Ditto, meaning Blue's defeat at the hands of Red did not count, and this was all the fault of Professor Oak's nepotism. Another theory claims that Red failed to foil Team Rocket. And there are suspicions that Ash's 22-year losing streak prior to his Alola Pokemon League victory was due to the Pokemon Leagues being corrupt to the core. Perhaps the reason for Team Flare's villainy has got to do with the Pokemon World being wicked and lacking any beauty whatsoever because it is rotten to the core, and they seek to destroy it. This could be bad because Sailor Galaxia dislikes anything that lacks beauty to the point that she destroyed entire worlds, and the Pokemon World could well be on her target list...