Which is why it's taught by the Army through such phrases as the one you criticized, to E-0s and up. Not everyone is taught those values at home, by far. If you were Army, you also recall the Army Values, described in the acronym LDRSHIP: Loyalty, Duty, Respect, Selfless Service, Honor, Integrity, and Personal courage. The FBI's motto is Fidelity, Bravery, Integrity. We can see what happens in our daily lives today when we don't teach proper values, don't teach doing the right thing all the time, regardless of whether we're being observed or not. (We're always being observed, of course - by God. When we stopped teaching that....)