Bums are brilliant economists! They sit on the corner and beg for change from all passersby. And while they are not millionaires, they apparently get by. Why are these guys so smart? They only ask for change and over the course of a day, that change adds up.
Actors apparently learned economics from bums (no insult to bums intended). The oodles of money that actors make is a result of millions of people giving up a few dollars to see a movie. Once again, the individual cost is small but it eventually adds up.
We have a concept; lots and lots of small amounts add up to big amounts. Not earth shattering.
Government is a collector of small amounts and those small amounts add up to a lot of money. How does government decide how to spend that money? Well, since government apparently also learned economics from bums there must be a parallel. I got it, lobbyists are the bums of government.
The simplistic answer then, is to get rid of lobbyists. This won't happen and to see why let's revisit the economics of the bum. Most of us want him to put the money to good use, but no one will follow up to ensure that their quarter is spent wisely. The bum on the other hand has collected much more than a quarter. He would fight you a lot harder for the right to waste his money than you would to stop him.
Our lobbyists are no different. The passersby are the taxpayers and each taxpayer pays a relatively small amount. The lobbyist on the other hand is vying for a say on how to spend a large amount of money. Who do you think will fight harder, the individual taxpayer who is out a few bucks or the lobbyist who stands to make millions. We know the answer, which is why DC is larded with lobbyists.
There is no way to reform the lobbyists. They are a consequence of the incentive structure and the only way to get rid of them is to change the structure. Absent that, as the sun rises, the bums will come to Washington.