The non-profit can hire the company executive and pay them, which if I understand correctly is exempt from income tax.

I think this can be a way for executives to avoid income tax: basically donate to a foundation through obscured means (crypto, purchase from third party, etc), then get non-profit money with exemption. They probably need to jump through many hoops and it is very likely still illegal, but I wouldn't be surprised if this is common.

But anyway the couple dime people are donating probably is neglegible for tax purposes (I am guessing, I don't have data). Yet I see no reason not to just donate to a charity you trust online...

Source about income tax: https://www.investopedia.com/ask/answers/08/nonprofit-tax.asp