I believe it is more because one party would not want the other party to gain any advantage. It is all about making one party look good and the other bad. What is good for the country takes a back seat. In today's environment, the GOP would have wanted Kennedy to fail and fail badly. (And, the Dems, had Kennedy been a ®, would have done the same.) Rush and the rest of the GOP radio network would have had some cute labels Kennedy's Folly or such and lambasted it at every turn. Pointing out the amount of money, etc.
And again, that is just because it is the example we have. The Dems would have tied it to global warming, announced every night how many children and elderly could have been fed with the money being wasted going to the moon, etc.
And the real losers? All of us.