They often have a hyper inflated sense of individual accomplishment; they're usually "pull yourself up by your bootstraps" people (while unaware of the true meaning of that phrase) and they usually despise any attack on their sense of control, including the narrative that they are "self-made".

They generally have a remarkably homogeneous set of values and promote the same sets of policies and programs on a national scale. They use their influence to tip the scales on a very select group of issues and "personal interest" problems, but they also espouse broadly libertarian approaches to their holdings and wealth, all while insisting they are remaining apolitical.

What they do for PR stunts is usually belied by large scale tax evasion, extremely intensive lobbying, aggressive litigation, and monopolistic capture of whole markets if need be to protect their wealth. Many of which is of questionable legality, but perhaps of even more questionable morality and ethics.