Limbaugh does not say that Obama could well justify other dictatorial deeds with the words "It's the right thing to do!" However, is not that statement part of all utopianism?
And what does all utopianism bring, sooner or later?
A few quotations about utopias from a variety of individuals:
"Idealism is the noble toga that political gentlemen drape over their will to power."
“If people would forget about utopia! When rationalism destroyed heaven and decided to set it up here on earth, that most terrible of all goals entered human ambition. It was clear there'd be no end to what people would be made to suffer for it.”
Nadine Gordimer (recipient of the Nobel Prize in 1991)
"All paradises, all utopias are designed by who is not there, by the people who are not allowed in."
Toni Morrison (recipient of the Pulitzer Prize in 1987, the Nobel Prize in 1993, and the Presidential Medal of Freedom in 2012)
"Utopia is that which is in contradiction with reality."
Albert Camus, Between Hell and Reason
Additional reading: "Which Failed Utopia Was Best?"
Also see "Justice Scalia: Obama's Lawless Actions Mind-boggling."