“Corporate activism on social issues isn’t in tension with corporate self-interest on tax policy and corporate stinginess in paychecks. Rather, the activism increasingly exists to protect the self-interest and the stinginess — to justify the ways of C.E.O.s to cultural power brokers, so that those same power brokers will leave them alone (and forgive their support for Trump’s economic agenda) in realms that matter more to the corporate bottom line.”