In reply to montyjohn:
I don't think this example shows altruism on Musk's part in any sense.
A closer read of the terms of the patent sharing place a huge amount of restrictions and limitations upon companies using the patents. I won't go into complete details but the use of Tesla patents effectively shields Tesla from any suit that the company using their patents could file in regard to intellectual property, regardless of what product it is (or so is my interpretation). This article goes into more detail https://www.lexology.com/library/detail.aspx?g=ca6c332f-2cc5-401b-b80d-3647...
On top of this, Musk himself admitted that the strategy was non-altruistic, with the sharing of patents massively increasing the electric car market and furthering public interest.
Regardless, this singular act does not mean he is not someone who acts morally. In order to become the wealthiest human on the planet that is simply not possible. My point is that I do not trust someone who has the mentality and morality to amass that level of wealth, be it Musk or another billionaire.