Of course it does. Phone manufacturers exploit child labor in third world countries to make their phones (and that's not okay, for the record). But if I rob their shipments and steal their phones, I'm wronging them anyway. Being a criminal does not exclude you from being a victim.
And, as said in a sister comment, I'm fully on your side of 30% being to much. But that does not mean that I think they should get nothing.
You said it's a contradiction that I say that a) Google exploits developers (in a way) and b) developers [can try to] to exploit Google. I made an over-the-top example to show that these two are not mutually exclusive.
