"Government is not reason, it is not eloquence, it is force; like fire, a troublesome servant and a fearful master. Never for a moment should it be left to irresponsible action." - George Washington
The lobbying, corporate snuggling and political bribes are a reality because they work. Politicians have the ability (through their monopoly on force) to doll out special privileges. They can pick winners and losers. They can bail out their interests. What the special interests profit from, what they are lobbying for, is the borrowed use of the governments perceived authority to initiate force to fund or carry out whatever program, regulation, or law that said special interest wants.
As for the database, who exactly is WE? and how are we going to prevent WE from abusing their power?