2) I sometimes am in a non-connected environment (sometimes I'm moving and I have my laptop with no Internet around ; rather often these past years I've had to relocate and it takes one or two weeks to get Internet going). I refuse to be prevented to use my legally purchased games because of this (especially as it's precisely the moments I need the games most, as I can't pass time with InNternet surfing ).
I demonstrated years ago somewhere in the "Other Games" sub forum that this is not the case. Games purchased on Steam can be used when not connected to the internet.