Outrageous monitoring your computer

I just bought the game and am totally upset not only that one of the manufacturers forces them to open up a Steam account to check the license: The game can only be started through Steam for the first time ever, that the computer MUST be online.
Add to this that the Steam client itself so outrageously deep digs in the system that my virus scanner has struck several times and even reports a Trojan.

I think it is a joke, computer users have spent good money for a PC game, so bold to spoon-feed and to force in accounts with third parties and online monitoring!