Why buy and put a cheap set in the vehicle? So it fails the first time you use it?
I have a Billings & Spencer wrench set in my truck which I used several years daily before being sent to the truck kit. I trust that 60 year wrench set more than i would trust the 2 sets you listed. Same holds true for the Channellock pliers and Stanley screwdrivers in my truck kit.
Don't cheapen on the emergency tool kit. If anything, that is where you want the quality, never fail tools.
Not for me, I want the "just good enough" tools. First, they're not going to be used all that often and to me it's dumb to have that $$ ******* in something you'll rarely use. Second, if you lose it/drop it/loan it out you don't cry.
There's very little reason to suspect basic inexpensive wrenches are going to outright fail during a roadside repair. I've got the basic polished chrome HF wrenches and they seem perfect for a roadside kit.
When I was 'wheeling there were a few tools I'd make sure were quality, but on the trail you also want just good enough. No one wants to be dropping a dual 80 in Moab sand or Colorado mud.
OP, these are not wrenches but they still have these kits with 75T ratchets on sale:
http://www.shopyourway.com/craftsman-16pc-3-8-drive-sae-socket-wrench-set-with-75t-ratchet/607659826
The fractional at least is a surprisingly comprehensive kit that goes to 1" in 3/8" drive (kinda rare in a basic kit) and I maintain that the 75T are incredibly nice for their price point - - other GJ members have reported finding them disappointing for reasons I don't fully understand but we all have our opinions.
The metric set is also on sale, just search sears.com or shopyourway.com (the latter is faster for my browser or connection) for "Craftsman 75T"
Sorry, not trying to get
too far OT.