Earlier quoted context omitted.
Now, when Steam decides that you have violated their ToS in some way, they will close your account and lock you out of everything you bought. This happens, rarely, but happens. Do you want to be dependant on an idea of a corporation that they will treat you fair? Are you OK to give away your washing machine and oven just because you had troubles with finances and you missed one payment?
You have a point, but if the law catches up with this idea, then I don't think this should be a problem. I.e., stronger rights for people who use services.
Don’t count on service quality laws to make up the disparity caused by losing the right to full ownership of one’s property.