They're not getting much fame, but then they're not facing much objective cost either. Most of their friends will not mock them for their brown-nosing fame-whoring sanction of the victim. George W. Bush is, sadly, more famous than great economists are, and they can take advantage: As long as their association with Bush Junior is newsworthy in both directions--newsworthy to mainstreamers as well as econfan obscurojournalists--they will earn more notably new exposure than he through this match made in shock.
If even one child...sees the endorsement, googles "public choice," gets a book on micro, and grows into a freedom-aware economist, their endorsement may well be worth this appearance of sanction. If not, maybe Buchanan will get more D.C. party invitations where he can model good conversation as a free-rider problem . . . Every man must live through his own fifteen minutes of whoredom. "Think of the hits!"