Thoughts on investing in companies that don't align with your morals

It's a thought that's crossed my mind many times, a great opportunity presents itself, you're almost certain to make a profit on it but it involves shaking hands with a person/company that go against your personal beliefs.

An example could be the recent dip in TESLA shares. I'm almost certain they'll turn things around. Whether through good business strategy or the Trump administration helping his friend Elon (Tax rebates etc). You put £20k in a tax free ISA and I wouldn't be surprised if you double that or more within a year.

Then comes the issue of Elons politics. I'm not a fan. In fact I think he's an a\*\*\*\*\*e. So I refuse to put any money into anything he could benefit from.

Does anyone else draw the line with certain companies or industries? Or is it "just business" for you.