Salutary

Definitions: (1) producing a remedial effect; wholesome; healthful; (2) encouraging or contributing to some beneficial purpose; (3) something corrective or beneficially effective, even though it may in itself be unpleasant

Synonyms: advantageous, profitable, useful

Quote: The experience of seeing how our thought and our words and our ideas have been confined by the limitation of our experience is one which is salutary and is in a certain sense good for a man’s morals as well as good for his pleasure. It seems to us [scientists] that this is an opening up of the human spirit, avoiding its provincialism and narrowness. — Julius Robert Oppenheimer (1904–967) American theoretical physicist