Waterproofing socks never concern me. I am more interested in waterproofed boots then I stay of of water deeper then my boots.
If you want warm feet, besides a good pair of boots, get a pair of compression socks at wal mart. Some call them diabetic socks. Put them on and then a good pair of wood socks, and finally quality waterproof boots. Your feet will stay dry, warm and comfortable if you don't fall in the lake..