Why would it be nifty to base the underlying format exposed by the OS time APIs and real-time clocks be based on a unit that happens to be a integer divisor of

Why would it be nifty to base the underlying format exposed by the OS time APIs and real-time clocks be based on a unit that happens to be a integer divisor of a bunch of common audio and video formats in 2018? Sure, flicks seems like a useful tool for people working in those fields, but what about the rest of us? Seems a bit short sighted, or at least extremely unusual for the average person who doesn't care how audio or video is encoded but still deals with high precision time. If I'm interested in CPU performance, should I suggest that time be denominated in units that are compatible with common CPU frequencies?