I don't understand. I didn't say the guy started a non profit, I just said he formed a company specialising in renewable energy products?
The point is he has certain aims and priorities in life, to the extent he forms a company to do his bit in delivering on them and would naturally feel like donating to a politician who shares those aims and would enable legislation to assist in this. That's alignment and it is easy to approve of on this example because these days most people agree global warming is an issue and anyone interested in solving it is a good guy.
Very different if the businessman 'says he' doesn't believe in AGW and is a CEO of a coal mine. Very different if the MP also says he doesn't believe in AGW and is concerned about the miners jobs that he thinks should be preserved in his constituency.
Different again if the MP does believe in AGW, but votes and lobbies against his principles because he happens to get huge donations and freebies from the Koch brothers or the like. that, for me, is corruption, but not easy to prove. Hence transparency, scrutiny and publicity are important. This is why Solomon Hughes, Richard Brooks and Ian Hislop particularly talked about extra transparency and scrutiny as important, so that there can be publicity about conflicts of interest so that voters or ministers or legislators can at least factor in possible corruption. They even suggest that contract details, minutes of meetings are published so that people and journalists can understand exactly what skills people are bringing to get their remuneration.
A MP having a second job is fine if he is a GP and he is doing a day a week in his surgery, or works during recess to allow other doctors time off. Apart from doing a worthwhile job and keeping their hand in for a profession they might four or five years later have to go back to, they are also appreciating an important part of society at the coal face as it were. An MP having a second job is not so fine if the are a GP but getting paid by a hedge fund and suddenly lobbying to loosen the controls of the financial regulator over hedge fund fraud or whatever.