This is an unfair comparison.
Hospital overhead, nurses, imaging and diagnostic capital equipment, building maintenance, support staff and many more costs are not included in the hospital fees billed.
Whereas outpatient clinics do include those costs in their fee for service charges.
Nevermind that even the best funded top tier hospitals have already exceeded their physical, structural bricks and mortar capacity to deliver these procedures. The costs to build new wings and reorganize and renovate existing hospitals to increase capacity are astronomical.
Both of these surgeries do not belong in a hospital setting. It's better to free up operating theaters and recovry beds for high risk or urgent procedures that may require the full support of a hospital's resources. Cardiac, cancer, trauma etc. Or teaching, internship, residency and research rich procedures. It is grossly wasteful to tie up the hospital's respources from admin/admitting/prep, nursing, etc etc for a simple cataract or knee tendon repair. Knee replacement? For sure in the hospital! Arthroscopic sx on a torn meniscus? No way does iit need a hospital.
Also, the fee at the private clinics includes follow up. Not so with the hospital.