Well, lobbyists don't fund campaigns, they seek to influence for cash.
There are loads of shady things going on in the EU agriculture sector, the US doesn't have a monopoly on shady lobbyists.
https://www.politico.eu/article/copa-cogeca-farmering-lobby-europe/
Pharma is by far the biggest spender on lobbying
https://www.statista.com/statistics/257364/top-lobbying-industries-in-the-us/