I still think you're on the losing side there. There have been experiments done which indicate people routinely don't act in an economically rational manner with respect to the limited context of the experiment.
Instead, I think there's a lot to be gained by simply not bothering to care about the rationality, real or imagined, of other peoples' individual choices. For example, it hasn't even been determine that there is a need for more energy efficiency. Yet advocates have skipped on past that little problem to obsess over light bulb buyers' lack of rationality.
It's a silly game that society shouldn't be playing. If we're going to mess with other peoples' activities because they are perceived as "irrational", then that makes a pretext for the rest of us to mess with your activities on the same basis.