Everybody is lobbying for their interest, not just corporations. Corporations may finance a party, but they're not casting the votes. There's an endless number

Everybody is lobbying for their interest, not just corporations. Corporations may finance a party, but they're not casting the votes. There's an endless number of special interest groups, large and small, corporate or public. If a government is so vulnerable to lobbying, that's still a government failure, it's not the failure of those trying to defend their interest.