It's important that they do that, for sure, but apparently the MOST important thing is something else entirely.
That most important thing is that they're using elections as a very convenient excuse to act out as complete fucking assholes. Whether or not they win elections from being the assholes that they are, this sometimes seems to be is utterly disconnected, one from the other.
When they're on their asshole kick, it's clear that nary a fuck is given about what detrimental effect their assholism would have on their chances. That's the thing behind their worship of Ayn Rand. She wrote their manifesto to living their lives as the selfish assholes that they can unabashedly live.
Which explains their penchant to cheat and lie at every opportunity… It's compensation for their assholism. Besides, they've got a ready reservoir of billionaires who are footing the bill to get them elected. It's much easier for the Republicans to give in to their own intrinsic assholism, get paid for their behavior by their rich sponsors, than it is for them to try to get elected strictly on the merits of NOT being complete assholes.
Their priorities are abundantly clear: Be assholes first, get elected second, satisfy the needs of their rich benefactors third, break the electoral system in their favor fourth, and lastly fuck everyone that they hate.
Running the government? Taking care of the American People? Being RESPONSIBLE?
Fuck all that shit, they're too busy being the greatest assholes that they can be.