yes , it is definition of torque in mechanic.no they are not for example non of Su-30 hard-point are wet plumbed but they can carry heavy weight , what i say is just physics , pylon 3 & 4 & 5 are the central and the two pylon adjacent to the body so they put a lot less stress on the body and wing if you put heavier weapon on them, you see the more you go away from the body, heavier weight put a lot more stress on the body it simply follow law of levers. guess this explain it better
https://en.wikipedia.org/wiki/Lever
But wet-plumbed word is belong to fighter maintenance men.