Before his accident in 1995, he didn't give a wet slap about stem cell research. Only when it affected him personally did he take up the banner.
And that is a bad thing? Why?
For example, how many people would be involved in one of the various cancer societies had they not been personally affected by the disease in some way? Even Saint Paul came to see the light, so to speak.
It's not a bad thing. But his altruism is sadly transparent.