Yes: different market segments --> different kinds of buyers --> different priorities. This is Marketing 101.So why do people pay tens of thousands of dollars to drive cars with a status badge and no savings on fuel? People make these choices every day and they say hybrids are not 'economical'. Can you make sense out of this?
The luxury car buyer isn't make a purchase on the basis of how economical it is to run the car. They are looking for a status symbol and a luxury driving experience. Any arguments you make on the basis of fuel economy won't matter much to this buyer if you are comparing a luxury car to an econobox.
And the person looking for an economy car *is* going to care that it will cost them $10,000 more to save $2,000 over 5 years.
If you don't understand that you have to tailor your message to the buyer you are trying to attract, you aren't going to convince anyone of anything.