I finally have a word for that (headstrong), thank you. I have observed this about myself in many situations. People need to convince me of something, by "subjectively rational argument" rather than "because I feel so arguments". While I might be willing to do things that do not take much effort, even when they do not make that much sense, depending on the standing the other person has in my book, I am not willing to do things, that I am not convinced are making sense, when they go against my principles. And I do have some of those. Headstrong it is then.