> There's no difference between companies and people here; no one, spending their company's money or their own, should be able to influence solely through money.
There is because individuals are not normally the clients of lobbyists, nor do they - normally - approach politicians directly with money in hand except for some countries where campaign donations are a thing. They shouldn't be because they are effectively corruption but unsurprisingly countries where this practice is established never get around to abolishing it because it put the people who are in power in power in the first place.
> They only can because of corrupt state employees, who should be replaced.
If the state employees receive that money off the books then yes, but if it is structural it is not the employees that should be replaced but the system that should be replaced. And that is a much harder task. Because you could replace employees until the cows come home, if the system remains the same nothing will really change.