When the pop music star Taylor Swift publicly criticized Apple’s royalty payment plans recently, government regulators that had been investigating the company for various other reasons might have thought: Get in line.

In the last few years, Apple has become the most valuable company in the world as well as one of the most scrutinized. Officials in Europe and the United States are looking into Apple’s deals with music labels for possible antitrust violations.

But as Apple prepares to start its long-anticipated subscription streaming music service on Tuesday, few marketing experts expect the scuffle with Ms. Swift to leave any scars. Instead, they think it turned out to be remarkably good publicity.

“I don’t think the episode has damaged their brand at all,” said Jordan Cohen, the chief marketing officer of Fluent, a consumer marketing firm. “More than anything, it served to shine a huge spotlight on its newest offering with a week to go until launch.”