I must be misunderstanding your post here. Fog lights are supposed to shine their light low (and wide) just like low beams, but lower since they're mounted lower, to get below any fog.So is using fog lights as driving lights they are two completely different kind of lights. Folks tend to forget this and use the fog lights as additional driving lights. I stuck 50w HIDs in my fog lights because I use them as fog lights their intended purpose (the same way as if I was driving with high beams). All fog lights have a very wide beam pattern. Driving lights are narrow so they don't shine in other drivers eyes.
Aimed correctly they can't really blind anyone...if they are proper fog lights, which the OE Ram ones really aren't, based on their miserable light pattern.
That's one reason why the fog lights only stay on with the low beams, since they shouldn't blind anyone.
Driving lights are like high beams and will definitely blind people, which is why they must go off with the high beams.