is it evil that google only advertises its own products on its homepage?
The idea that google on occasion expends efforts to keep people in their ecosystem, whether its what happened on the Russian chrome, or the way they use the android marketplace to prevent fragmentation, is wrong is ridiculous.
Google is a company not a charity. The fact that people expect it to be selfless is a testament to their actions, not a talking point that should be used to bludgeon them.