Feel free to tell voice-over artists and other actors that their jobs are following basic instructions. Same with sales, managers and tax accountants.
If all Starbucks outlets look the same, sell the same stuff and use the same process, I'd say the manager is largely just following the manual.
As for taxes, mine are already prepared by a computer then just checked over by a human. That's not to say there aren't also high end accountants designing company structures and doing financial planning.
And, congratulations, you can find people who are willing to do voice over work quickly. That doesn't mean it doesn't take a lot of creative work to get the right feel and urgency for the situation. Improvisers sometimes use scripts, too, as a stage gag, and they'll read the things they're using too, but it's them that adds personality, intensity, everything.
And managers, they manage /peeople/. Maintaining a store's stock isn't too bad. Managing people and solving disputes in a pleasing way for all involved, that's a much harder problem.