In principle, there's nothing wrong with lobbying. Legislators cannot be specialists on everything that needs to be done. Bat conservation charities lobby the government on issues related to bat conservation. Deaf associations lobby the government on issues related to education of Deaf students and Deaf accessibility. Lobbying from commercial interests is infinitely more suspect, of course, but still sometimes reasonable. The trick is to have very strong laws about openness: lobbyists should be registered, and minutes of meetings should be published.

Ireland's Regulation of Lobbying Act (2015) [1] is something of a gold standard, which some other countries are considering using as a model [2].

[1]: https://www.lobbying.ie/help-resources/information-for-lobby... [2]: https://www.politico.eu/article/ireland-lobbying-clampdown-m...