I have worn the same pair of Lowa Strato
for about 4 yrs. I have the over the ankle version but they all have the same design where the sole curls up over the toe in one piece. I would think you'll burn thru the leather upper long before you'd have any problems with the sole and you can protect the leather with some shoe goo on the toe to absorb that scraping-on-the-concrete you mentioned.
I go through a new pair of shoes every 4 months because I tear the sole off the front of my shoe, then rip through the toebox. Anyone suggest a shoe that has a very well made rubber front?