~わけにはいかない (cannot, for social/moral reasons)

The pattern [verb plain-form]+わけにはいかない, 'can't (very well) X / cannot afford to X / it won't do to X / mustn't X.' Expresses impossibility arising from social obligation, moral expectation, or practical constraints — not physical inability. The double-negative ~ないわけにはいかない flips to 'have no choice but to X / can't not X.' Stronger and more principled than bare ~できない.