Nolan did great work with Daredevil, reviving a favourite of the 1980s after he kind of fell to the wayside during the '90s. You could really tell Nolan went into the lore of the character (particularly Frank Miller's run and Born Again). That being said, I think that Daredevil was too much of a good thing. By trying to retroactively make the Nolan Trilogy part of the MCU, Marvel was forced into a corner with less skilled directors trying to emulate the dark style of Nolan, with it instead coming off as edgy and juvenile (I still can't believe Captain America decapitating terrorists with his shield still made it into the final draft of that script). It was just made worse by the fact that Ben Affleck, the definitive Daredevil, wasn't playing Daredevil anymore.
Maybe if the New Regency deal to buy the rights to a Daredevil movie had succeeded before Nolan got his hands on it, and/or Joss Whedon's Batman script had been rejected, then maybe Nolan could have been the mastermind of a trilogy but the slayer of a cinematic universe on the other side of the DC/Marvel divide.