This is especially clear when one learns that when Kevin Feige discovered James Gunn was going to make The Suicide Squad, the Marvel Studios chief just wanted to see Gunn make a good movie.
In one form or another, there has always been something of a battle between Marvel and DC.
Having said that, there is ultimately plenty of business to go around, and since everybody who loves Marvel or DC just loves good superhero stories, a win for one company is really a win for both.
You can’t have two companies working in the same industry and appealing to the same customers without some sort of conflict arising.