It's simple really. US Airline Managements only focus is the Bottom line.

Service and Safety are merely words spoken, not practiced, because they both add cost and therefore reduce the Bottom line. ( and possibly effect Corp exec Big bonus payouts)

How many fights carry the absolute minimum FA's aboard, where several years ago had an extra 1 or 2. More manpower ( excuse pun) to provide better cabin service and a safety buffer should an inflight emergency occur.

The difference is short term thinking verses long term. Eating the increased cost to increase service and safety eventually will pay off as customers will see a difference. While I get the fact that ticket prices drive consumers, in other words domestically for a 2 hour flight people flock to the lowest priced ticket.

But I for one am willing to pay slightly more, to fly on the Airline that provides:
1. Reliable On time service. Experienced and qualified Pilots ( the General Public simply assumes this)
2. Decent customer service, from Ticket agents, Gate agents and Flight attendants.
3. Quick reliable Baggage retrieval.
4. A good frequent flyer program is a plus,
5. Hot young friendly FA's in mini skirts........This is a Wish list after all