As long as they use the content appropriately that’s a good thing as it reduces web traffic to Wikipedia and saves them money. The purpose of Wikipedia is to i

As long as they use the content appropriately that’s a good thing as it reduces web traffic to Wikipedia and saves them money. The purpose of Wikipedia is to improve human knowledge and all their content is CC so unless Google is altering content or biasing searches, sucking it into Knowledge graph seems like one of the main reasons Wikipedia started.