With the travel ban E.O. Herr Trump didn't want to tip over the cash cow that he no doubt considers his office to be.

N.Y. Times

From the article:

"After the election we often heard the phrase "to the victor belong the spoils." But there are ethical and constitutional limits to that maxim. In this case, an already suspect immigration ban is subject to yet more doubt because President Trump may be looking to his business interests at the same time as he makes decisions about human beings who want to come to America to study, earn a living, avoid persecution and in some instances, to survive."

They've given us "alternative facts" and now we've got "alternative ethics".