Lobbying is just corruption legalized. The only reason they use suit-cases and underwear filled with money in Brazil is because the corruption hasn’t developed the same veneer of legality yet.
The ideal amount of corruption is not 0, but equating lobbying to suit-cases is disingenuous. Suite-cases are far more damaging and cheaper way to get congress votes and only brings the most unscrupulous people who want to plunder the most out of government intervention.