Money thats only true to a point.
Remember, the incentive is to get people to change sides, eny helps accomplish that by not letting them fly their fav ride when they have a big numbers advantage.
The only thing that I can see that would help more, is if we got perked ords, and tied that to ENY also.
So for the sake of discussion say 1k bombs on fighters would be perked (low) But when ENY kicks in 500lb bombs would be perked also, or not available at all. Or, 1k bombs wouldn't be available, and 500's would be perked. If the ENY got bad enough 250lbers would not be available, or be perked. Eventually the high numbered side would be down to trying to capture fields with 100lb bombs.
While over the the low numbered side 1k bombs would be free.
Meantime everyone can still fly, but the side that outnumbers the other is not going to gain a lot of territory.
The other option is as HT stated, where AH does the balancing, and you would not be able to fly with your friends, squadmate's.
What you want is not necessarily what you think you want, not where gameplay is concerned.
Not if you want AH to stay alive and healthy.