But see, there often are more of those "hour or two a month" people. If you have, say, 20 times as many "non power users" as "power users", then "an hour or tw

But see, there often are more of those "hour or two a month" people. If you have, say, 20 times as many "non power users" as "power users", then "an hour or two a month" times 20 adds up to a significant amount - still less than the "power users", but not negligible. And that's the problem of a lot of enterprise apps. The UI design is one that makes sense and is efficient for power users, but a large number of regular users use the app too, and the UI design absolutely stinks for them.