Translate the following English sentence to French:
"It is, to a large extent, a principle of justice that imbues both health and pension schemes as well as social assistance, where, in particular, strategic coordination by the public authority is essential, even though it has been modernised."
C'est, en substance, un principe de justice qui touche la santé, les systèmes de pension, mais aussi l'assistance pour laquelle la coordination stratégique, même rénovée, de l'organe public reste inévitable.