What you should take away from the Rush Limbaugh fracas, other than that aside from the choice of words, he was right.
First, advertisers who initially abandoned Rush Limbaugh are afraid of the left. They are afraid that the party of big government will come at them with all their resources to undermine whatever it is they do. So they cannot be trusted to stand up for free markets or capitalism. Plain and simple. They will never defend freedom of speech or the right of association.
Second, and most obviously, the left wing–media, celebrities, Democrat politicians and talking heads–have reasserted their hypocrisy; they do not care about women, they care about women who yank their chain, and no one else. To the likes of Maher, Letterman, and the left wing women’s activist groups, the slutty, c**ts who should be raped or beaten (in the Conservative and Republican camps) go to the back of the Hopey-Changey bus. In their world some women have more rights than others.
Third, the mandate that initiated the entire conflict was a staged campaign stunt, using a professional activist, presented as a victim, for the purpose of imposing the will of the state on an employment sector they wished to manipulate. In this case it was religious groups and their employees. Next time it could be your sector, or your industry, and you have no reason to believe that this will not be the case, should the professional left, using the weight of the entire left wing media/information industrial complex (complete with union thugs as required), feel the need to regulate or intimidate you, your industry, your employees, or your business model.
Fourth, this is how the Democrat socialist/progressive model operates. Sooner or later, if left in power, they will find a reason to come after you.
There are more lessons but they all hinge on the same basic premise. By making you afraid to speak or act the left seeks to control your behavior just as if there was a Federal Bureau of “why don’t you just shut the heck up.” And this premise, this shadow cabinet, is something history likes to call fascism.