I'm pretty sure Xenophan wouldn't have felt inclined to add the advice "in times of plenty save for times of dearth" in the Cyropedia if it were unnecessary advice...
I could probably find many more points of short -sighted decisions (e.g., Marcus Aurelius letting his son inherit, Sam Johnson not regularizing spelling because it was too much work, Daniel Webster changing spelling to make a point and a $) if we had to go try to list
