If the engine has just done something nasty like throw a rod, the best
thing financially is to have an off field landing and total the plane.
If you land on a runway without damage, the insurance company pays
nothing.

Having just had an engine failure that forced an emergency off-field
landing, I can't believe that when suddenly faced with no power, anyone
would make a conscious effort to land off field **if** a RUNWAY is
accessible, just to come out better financially! We had no accessible
runway, but if we did, we sure as hell would have used it ... we were
thinking about saving our butts, period. In those few precious seconds,
insurance never entered our minds.