One can disagree about aspects of corporate financing of elections etc. while also accepting that everything doesn't get thrown up in the air if a corporate officer leaves for another company. Corporations are established entities that effectively act as a person for certain purposes--though one is welcome to disagree about the extent of those purposes. I expect most people here wouldn't, for example, be opposed to corporations donating to open source projects or other charitable causes.
Corporations donate to 501(c)3s as entities and even have matching gifts. In fact, a lot of charities have corporations/foundations as some of their largest contributors.
