Again, Belushi was a comedian playing a character in a comedy. Conversely, Lois Lerner is supposed to be a serious person in upper management of the Internal Revenue Service (IRS) managing Americans' tax money. Amazingly enough, Lois Lerner also asserts she's not very good at math, either, from 05/11/2013 HuffPo article "Lois Lerner, Senior IRS Official, Admits Not Being 'Good At Math'":
But in Lerner's defense, she's not the only person who plagiarized lines from Idle's mockumentary. There's a running gag throughout the film that the only reason the Rutles became famous is because they have nice trousers.
Conversely, David Brook, supposedly a serious columnist for the New York Times, swooned, I kid you not, over Barack Obama's creased pants, as quoted in P.J. Gladnick's September 1, 2009 Newsbuster's article: "David Brooks' Broken 'Bromance' With Obama...for Now"
“I remember distinctly an image of--we were sitting on his couches, and I was looking at his pant leg and his perfectly creased pant,” Brooks says, “and I’m thinking, a) he’s going to be president and b) he’ll be a very good president.”
Here's deluded David Brooks slobbering over the memory of Obama exchanging emails with him, but not mentioning his obsession with Obama's pant leg.
And finally, Obama plagiarized Michael Palin's character, Eric Manchester, Rutle Corp. Press Agent / Lawyer, who absurdly states that there's only "petty pilfering" in his organization whilst people are robbing his building in the background:
Similarly, Obama equally disingenuously asserts @ 2:30 that there is not a "smidgen" of corruption at the IRS: