Perhaps you can look at ejectors as cheap insurance.

I've had fairly extensive training with the 1911 .45
One thing I've been trained to do --given the time-- is to quickly check my chamber without taking the gun *too far* out of the fight. My instructors used to call the chamber check 'a half a second of cheap insurance'
Same goes with 'tactical reloads' where *again, given the time* the gunfighter freshens up the supply of ammunition by quickly swapping out the magazine with a full one before the gun is run dry, pocketing the partially full magazine for later use if necessary.

--

Shoot a big freakin animal that might have the chance to reduce you to a grease spot in the dirt or rip your throat out with a swat of one of it's undamaged paws, once mabye twice, and have time to do a quick reload? That second or two flipping a couple of pieces of brass out of your chambers might be enough to cost you your life, might not.
To some, those well tuned and maintained ejectors might just be a good form of cheap insurance.

Back when that pinfire double rifle with the bayonet lug pictured above was made, there weren't on-board extractors on the rifle. The bayonet was the 'cheap insurance' policy installed at the factory...

--Tinker