Well, many lobbyists advocate your views by giving money, goods or services to public representatives... but I suppose it is distinct in that you are not the one directly offering the bribes and 'favors'.
Sure, that's a tactic that happens in lobbying, just as its a tactic that happens in people directly advocating their own views.
I am not saying that lobbying is free of corruption. But the reason the two often go together isn't that lobbying is fundamentally corruption, its that lobbying is an expensive form of petition, which makes its community of users overlap considerably with the set of people/groups with the resources to effectively engage in corruption independently of whether or not they were using an intermediary to do advocacy to public representatives.
Now that is hard to judge from the outside, but that is the real difference.
I suspect many people believe those in power now are mostly selling their vote for cash not making decisions based on the merit and just happening to side with those giving piles of cash because they heard those people give explanations of why favoring them was a good move for the country.
Which is also usually corruption and a violation of campaign finance laws which prohibit coordination between unlimited "independent" expenditures and candidates or campaign committees controlled by them.