This idea embodies what's wrong with political Ideology especially in the mind of a technically minded person, in my opinion.
The left think the problem is the rich. Rich people inevitably have the resources to buy power and the incentive to do so. Wealth begets power. Look at history. Get rid of the rich.
The right think the problem is power. The powerful inevitably have the incentive to sell their power. Wealth begets power. Look at history. Get rid of the political power.
Both of these positions are trying to tie the political economy in a tidy bow. Set up a few meta rules and all else flows from that. Neither are in any way practical. Both ignore other things like political inevitabilities of a democracy.
So take and ideological libertarian. She believes a government should enforce contracts, arrest criminals and (maybe) build roads. How does having this utopian vision influence her position on this issue in this world?
It translates to some completely irrelevant, theoretical position. "We shouldn't need a law banning money in politics because money should have nothing to gain from being in politics." This is insane!. In this world, politicians do have power and money does have an interest in politics.
We can't get rid of either wealth or power. Or, if you think we can, lets agree that we are not going to in the next couple of years. It is possible make and enforce a law that says bribery is illegal and use an effective common sense definition of bribery. If you want to campaign for you libertarian revolution or a gradual reduction of taxes and government spending, that's fine.
But, it is completely illogical to colour your position on what should be done now by what will or won't be necessary in some unlikely future.
I'll give you a corollary. I think that drugs should be legal worldwide. Good or bad, I think people have a right to ingest whatever they want and it's inappropriate to put them in jail for such decisions. The demand for drugs can't be stopped and criminalizing drugs creates enormous criminal industries.
In some producer and transit countries (eg Mexico), this global prohibition is causing an enormous harm, destabilizing the country with a lot of violence. The solution, in my opinion, is to decriminalize drugs worldwide. This might happen to some extent at some point, but it won't happen in the next few years. Meanwhile, it makes sense for the Mexican government to do whatever they can to reduce the harm being caused now by drugs.
Their domestic policy on marijuana has little or no effect on the level of violence from the cartels. It's not relevant.