I did retirement home training and used to think it was a sweet job. Then I got in the business and underestimated how demoralizing it was as they give you the easy elders in training while the others make you, or at least me, really think of the fact the job just amounts to an unkarmic freebie.
An alternate view for you, politicians can't possibly be expected to know about everything, care about every cause, meet with every person. One of lobbyists roles is to educate and motivate where otherwise politicians may be complacent. The reason that education is currently problematic is because powerful people control much of the "education". I think a well regulated lobbying system could remove some of the downsides while keeping the upsides. I've also worked in and around politics, that reality doesn't make either one of us more or less correct.