If your skill set is lying and you want power, the obvious strategy is to puff up the status of the gullible. (Previously. Subsequently.)
When a gull is responsible for their decisions, they will be rapidly disempowered. A fool and his money, etc. Their bad stewardship is rewarded with the destruction of the managed objects.
Every time a vote is mismanaged, power is redistributed from the prudent to the gullible. The resources the gull controls still get destroyed, but since votes are inalienable and equal, the destroyed resources are refreshed by leeching off the prudent. At least, until they're all destroyed, ref. Greece.
The liar must be amputated from the gull. There's only two ways to do this, either release the gull to fall into their self-inflicted pit, or else lie better than the professional liar.
The latter is remarkably feasible, because lying in service of truth is slightly easier. Some of the less dull gulls check the sources, and they'll find they were lead to believe true things.
The former doesn't involve lying for virtue, but it does mean making gulls irrelevant, and most likely dirt poor. It violates chivalrous principles in detail, as it amounts to attacking the weak, but consider the alternatives.
The other obvious strategy is to create and multiply more gulls.
The modern world overflows with frighteningly gullible gulls, who happen to be very hard-working. (Have you ever tested how gullible they are? I did.) The modern world doles out the highest-status positions according to liar championships.
Just a coincidence, I'm sure.