You make no sense. We judokas aren't responsible for building a better society while everybody else is getting all the fun breaking limbs and stomping people' faces in, we want our share too (even the early judokas like Maeda, Tani, Kimura etc. thought like this). Judo-clubs aren't moral day-care centers for fuck's sake. Gracies pushed fights because they realised beating the crap out of people is fun like many before them, only way they're unique in that sense in modern martial art history is that they started to make money out of it. That being said, I think all sports develop people in a good way. Especially combat sports.
Besides, you're way too late with this crap. As mentioned, even the early judokas travelled all around the world challenging representatives of other disciples. That trend has continued throughout the history of judo. Most Japanese fighters start in MMA as judokas, exactly the same way as most Americans start with a strong wrestling background and Brazilians with bjj. Judo has been strongly represented in MMA for the whole time it has existed in its current form.
While Brazil is the homeland of bjj and many great fighters you have to face the fact that it hasn't been the Mecca of MMA in years because there is no such. The ability to fight in modern MMA has spread around the world. And when we look at the world's best fighters and where they are currently fighting, it's pretty obvious only a certain part of them are bjj'ers from Brazil and none of them are fighting in Brazil. No one cares what happens on a grass-root level in other countries (counting out the hottest prospects), not in Finland or even in Brazil.
I agree that judo individually should never take the same route as bjj. On the other hand it's great how people can live alone by teaching what they love but the flipside of the coin is a bit more significant imo. By being so commercialised there are many things that have hurt its development as a legitimate international sport. McDojos, poser practitioners, expensive teachers etc. make bjj hard to be practised by those who truly want to. It's a shame such a great sport is suffering of this.
Apparently you're pretty knowledgeable when it comes to bjj, but the more you post the clearer it comes that you have no understanding whatsoever of judo and how it is practised. When the basics have been taught and the kids start to mature, they'll get pushed just as hard as in any other sport. Any philosophies go out of window the moment they are looking lazy in class or fighting in a tournament. Sure, many people practise and even compete in judo just for fun. Just like in any other sport. But when 90% of competitors are measuring each others from the other side of the mat before a match, I assure you that they certainly aren't thinking of "mutual benefit and welfare". They're thinking of how they can slam their opponents to the mat, choke them out and leave the mat as a winner. Judo is much more brutal than it seems like it or not.