The elephant in the room… 15% cumulative joint revisions per year.

The Big 4 Orthos sold $15B of total joint implants last year... so why aren't the Big 4 Orthos focused on preventing revisions ?
I understand that revisions will always happen because of infections, loosening, continued pain, bad surgeries, dislocation.... but 15% is unacceptable.
The Big 4 are always working on the next implant thingy or the next surgical approach or a robot. Its like they consider the total joint industry as a "feature industry" or worse, a "fashion industry", not a "let's improve clinical outcomes" industry.
Why don't they focus on minimizing the 15% revision rate each ye...