I think you may have misunderstood, I wasn't even considering bending loads. Have you ever 'sweated' up a halyard on a small boat that doesn't have halyard winches? If you pull hard against a slack halyard you hardly add and tension at all. If you pull the halyard tight and then pull outwards at right angles you can create tremendous tension. A hammock is a really bad case, because you have two sources of mechanical advantage. You can tie the hammock to the rigging with it pulled very tight and almost no sag. When you add your weight to it is multiplied many times as the hammock sags. Then that pull goes into a stay which is taut, and it multiplied yet again.
I once got a heavy truck stuck in the mud, and our big digger derrick with 4 wheel drive couldn't pull it straight out. So we attached a steel cable to the truck and to a large tree and pulled it tight. We then used the four wheel drive truck to pull at right angles to the cable, multiplying the force many times. The stuck truck moved easily a short distance. Then we tightened the cable and pulled at right again, until we got it our.
I hope this makes clearer what I was trying to say.
Gary H. Lucas