The lobbyist is the consultative role. Their job is to consult. The only money that needs thrown around to lobby is the salary of the lobbyist. Now because we have a corrupt system that does not suffiently enforce the law, plenty of lobbyists throw around money to gain favors and deals with government officials, and that obviously should neither be the expectation or even allowable. But that doesn't made a paid role as a person who job is to advocate for some cause inherently a problem, so long as they do so ethically and, ideally, for a worthy cause.