Surely the safest reaction to every system failure is to work through the problem following best advice and procedure – if the aircraft is still flying safely and no other single failure will cause it to do otherwise, why not continue to destination?
If, on the other hand, there is no redundancy left – ie, one more system failure would be disastrous, then the only safe action is to land as soon as possible regardless of the cost to the company or inconvenience to the passengers.