You are justifying theft based on potential benefit down the road to the company. It is still...theft.
If I steal a car, I'm driving it down the road (thus advertising it), and heck, may even like it enough that I eventually buy more cars of that brand. But that doesn't mean I didn't still steal the original car.
I've heard the argument a million times, and while I personally don't report anybody who is doing this (it just isn't worth my time), stop lying to yourself that you aren't still stealing.
The same could be said about lots of rules. One could murder somebody they deem a bad person, and think they are overall helping society as a result. It is still murder.
Money can't buy happiness. Just video games, which make me happy.