I once played a rogue whose High stat was 13.
Nothing below a 7, but his high stat was 13 dexterity.
He persevered, barely eking out existence among a party of far more powerful characters.. It didn't help that the DM was applying "mutations" to every pc and min sucked.
"Electrical Body, you get +2 to saving throws vs. electricity attacks, and can deal 1d4 electrical damage with an unarmed strike"
In the entire time we played, i did not see one lightning bolt, or one shocking grasp, heck, even a shocker lizard. Furthermore, we fought quite a few things immune to my power
Compared to: "Mighty blood, you have +4 Str, and can perform a feat of strength once per day (as per the Cleric domain ability)"
Blah. He was a Bad GM anyway. Though, to be fair, i whined a lot about how weak my character was. I think he lost his mind somewhere around 8th level (When he discovered templates, and suddenly all of us had to have one. I jumped from 9th to 14th level because of one of his templates (Wight, i think) On top of that, I couldn't be healed anymore except by sucking the life out of my enemies... and I was a paladin.
Gods, he sucked.