124The requirement of a sufficiently serious breach of a rule of law that is intended to confer rights on individuals is intended, whatever the nature of the unlawful act at issue, to avoid the risk of having to bear the losses claimed by the persons concerned obstructing the ability of the institution concerned to exercise to the full its powers in the general interest, whether that be in its legislative activity or in that involving choices of economic policy or in the sphere of its administrative competence, without however thereby leaving individuals to bear the consequences of flagrant and inexcusable conduct (see judgment of 23 November 2011, Sison v Council, T‑341/07, EU:T:2011:687, paragraph 34 and the case-law cited; judgment of 25 November 2014, Safa Nicu Sepahan v Council, T‑384/11, EU:T:2014:986, paragraph 51).