My take here is..you must not have been doing this sex thing properly if that's how you feel.

In any event, flying all of that in coach is the reality for 99% of the travelling public. Whether it's appropriate for a business traveller depends on the circumstances of the travel and the business associated with it. If you took the job assuming your business travel would be done in business class or better then I can see why you'd feel a bit cheated. But then you should take your talents elsewhere.