Why not to try and make sense of the Wario series
Okay, very recently there has been a huge influx in the amount of paranoia struck obsessives who seem to think everything has a meaning, and that you can take everything in Wario games seriously, and it has to make sense. I will repeat this again and again, it does NOT have to make any sense!
Wario games, as you should know are designed and proclaimed to be all about the impossible, the exagerrated and parodies of various real life and fictional things rather than a set of games to analyse like it holds the secret to the universe.
Take Wario Land. It is no mistake that all the areas of Kitchen Island are based around things you would typically find in a kitchen, such as Rice Beach, Mt Teapot, Parsely Woods, the Fork Tree and Syrup Castle. They are all supposed to be based on the typical things revolving around food, the kitchen and eating, nothing more in a sense. And the reason they are named that is simply because Sherbet is like ice in colour, a Stove is a high temperature cooking device (hence it is used as the lava world) and Parsely is a type of herb, hence used as a forest. With that, and the typical cliche bosses which seem to be the overused typical concepts in some cases, it is meant to almost be a Mario like game, and kind of parody it.
Wario Land 2 was probably meant to parody the idea of multiple endings and paths in more serious games, hence the final area was extremely... not serious. It was probably also the first time Nintendo got to experiment with the idea of no health bar in a way, and the idea of an invincible main character.
And skipping a few games (I will talk about Rudy the Clown at a later time, as that is a very strange character idea), Wario Land 4 is not supposed to be a serious game either. Wario's obsession with money taken to an extreme? Bosses which are slightly strange in theory (Cuckoo Condor?) and the levels. In fact, the level themes are possible quite like parodies of the usual, and the areas represent either natural areas (Emerald Passage), Industry (Ruby Passage), various toys including the randomisation of board games, dominoes and a drawing book (Topaz Passage) and various horror type things in films and the such including a creepy village, an Arabian type area, a totally strange cavern and the typical haunted hotel with various killer ghosts with axes (Sapphire Passage).
Warioware only boosts this. The whole concept is meant to be over the top. The storylines are meant to be as non politically correct as ever possible and the games are meant to be activities in randomness.
The characters in Wario games are also a thing that shows this. For example, many characters could easily be based off of various stereotypes in games and the like, and meant to be as far fetched as they seem. And the fact each of those seemingly has traits which make them kind of different to expected is just part of the strangeness of this series.
And for another thing, why does everyone come to ridiculous conclusions from subtle things? Such as that supposed satanic message. It does not really sound satanic, but actually more of a curse than satanic, and this also goes well with the character profile on the Warioware Smooth Moves website, which lists this particular character's likes as 'Cursing'. Besides, if it is not that, what stops it from being a parody of the satanic messages supposedly found in various songs which have led to artists being taken to court (I know one case of this), or even a joke by Nintendo trying to show the subliminal messages do not actually work (it has never been confirmed they have an effect in reality). How do the critics know these things?
Same with character personality and job changes. While the personality of various characters may slightly alter depending on the game, and their job position/state of living may vary, it is only a minor change to suit the current story Nintendo may want in the current game of the series.
So lighten up and consider this;
Why are you looking for logical truths in a series which is meant to be all about gameplay and humour in the first place?