It's not just him, his sons are higher on the totem pole than Duquette as well. If I'm not mistaken, John Angelos is the executive VP of the Orioles, and over the past three or so years, Louis Angelos' role with the organization has also begun to expand. Further than that, it's the worst kept secret in baseball that Showalter already has tremendous pull within the organization and it's almost unanimously accepted that he's going to eventually get the promotion to General Manager.
There's a reason LaCava said no to the Orioles, and there's a reason why they had to bring in Duquette from the scrap pile when nobody else had a job for him; nobody wants to work for Angelos, and now that Duquette has reestablished his name and he's getting offered a far more lucrative position in an organization where he'll have a lot more freedom, why the hell would anyone in their right mind not want to pursue that opportunity?
Everybody hates Peter Angelos, and I fully understand if Duquette wants out of the bengay-scented Angelos and Buck sandwich.