Especially considering he treated only one of his children this way, and not the rest (at least to such an extreme extent). If his motives were really to teach them a lesson in fiscal responsibility and greed, I don't think he would subject only one of his children to such cold-hearted "education".
Oh I didn't mean to imply any humility or positive traits in Jobs, I was thinking more about how it must have felt for his daughter and how she had to rationalize it.