Nobody cares about this, the money they make isn't what other people interact with. It's the things they create.
Counter-counterpoints:
Cars 2, Brave, Monsters University, The Good Dinosaur, Finding Dory, Cars 3, Coco, Onward, Luca, Turning Red, Lightyear.
The (not very original) point is: You can no longer count on a Pixar movie being excellent.
As long as we're doing Disney acquisitions, Lucasfilm is also still pretty independent and successful. Other Disney acquisitions have been less so.
LucasArts (now known as Lucasfilm Games)... tell that to the games that were put on hold and then eventually cancelled upon acquisition.
But yeah you have a good point. They retained their culture and in fact spread it further by having the Pixar folks take over Disney Animation.