I'm not sure that driving the airplane into the ground as soon as possible would be a benefit, despite any perceived protection of sensitive components or classified material.

Imagine the fallout from a system that intentionally drove the jet into suburbia where the pilot punched out.

Generally when someone's getting out, the aircraft is beyond salvation, or the flight path is beyond recovery. Anything that does survive and should not, can be blown in place.

Except the fuzzy dice. No fuzzy dice left behind.