Isn’t ballroom culture inherently geared towards competition and not social though? I’ve heard from people who danced it that basically from day 1 you’re adhering and training for competition, and social dancing is less common (the inverse of most other social dances).
No, that's a myth. At best, we can say it varies locally--some places have a big social scene and no competitors, while others have only competitors and no meaningful social scene. Age trends play a factor, too--in the USA, Ballroom was the colloquial dance style when Boomers were young, and has been almost entirely supplanted in that role by Club Latin today.
But even without that age divide, the two groups just don't cross over very much. If you step into a competition-first studio, you're going to walk away thinking that competition is king. If you step into a social-first studio, you'll think that competitors are some rare and exotic breed. Neither is fully true. The most we can say is that competitors are the ones who spend the most money and therefore partly subsidize the rest of the industry, so it is rare to find a studio that doesn't support any competition training at all. But there are vastly more social Ballroomers out there than competitors. Most of those never take lessons, though, so you won't see them unless you seek out a social dance.
Also how the ballroom version of many of the dances is just radically different from the original version in the sense it’s just stripped of the culture and made to look flashy (see tango for the most obvious example).
I would argue that this analysis hinges on a few assumptions that should not be held as axiomatic.
All dances evolve over time. Ballroom is no different in that respect. It is true that the competitive Ballroom style has diverged from the original social styles, as a result of the differing goals. You could say that this evolution renders the style "stripped of culture" if you wanted to, and defend that argument without much trouble.
But that objection is no different than in any other dance that has experienced a stylistic evolution. Every culture has traditionalists that frown on change and say that it "ruins the culture." Ballroom merits no special praise or condemnation in this regard. AT, with its diverging social / performance / mundial styles, is in pretty much the same position--the only significant difference is that competitive Ballroom has had a longer continuous history than the Mundial, and thus has had more time to independently develop.
(On a personal note, I would even further argue with such traditionalists. Culture, like dance, evolves. When we preserve the "authentic style" of a dance, we are preserving a mummified version of culture that no longer exists. That's still valuable! But it is not inherently more valuable than allowing a dance form and a social culture to evolve together. By analogy: museums are amazing and important and beautiful, but they are not inherently more important and beautiful than current artists producing new work and challenging our assumptions. They are simply more carefully curated, with the benefit of time and hindsight.)
So I would challenge the implied belief that a dance evolving entails "stripping it of culture." Rather the opposite--
styles change in order to better suit the culture in which they exist. Competitive Ballroom, again, does not stand out here one way or the other.
Lastly, about the objection to flashiness. Take a look at any conversation in the Ballroom forum that touches on competitive styling. The prevailing attitude you will see, everywhere, is
disdain for pointless flashiness. We even have an idiomatic name for it:
flash and trash. No, competitive Ballroom culture, by and large, prizes "purity of movement" just as much as any other culture of dancers. And the judges are frequently the most conservative of the lot in this regard, which puts brakes on the most exuberantly-innovate types.