I suspect that 1/8 chains exist only because 1/8 chainrings exist. Theyre identical to sibling 3/32 chains only with longer pins and wider rollers. Longer pins should actually prove to be relatively weaker.
I suspect that 1/8 chainrings exist only because people taco-ed 3/32 chainrings.
Know that a 65t 3/32 dinner plate chainring is subject to being taco-ed by a moderately strong rider during a high torque effort.