I hate the look of topy's. I actually notice when people have them. If I am walking behind somebody and I see the bottoms of some guy's feet in front of me with a topy on them I can't help but shake my head. I know it sounds ridiculous, but to me it is just too fussy at the expense of an ugly shoe. I always felt there was something rather rustic and more natural about simply wearing down your leather soles. More of a feeling than anything else.
As for bad weather, imo, the sole of the shoe would be of least importance to me when getting shoes wet, you can replace them, but you can't replace a cracked upper. Are you really, deliberately wearing $1,700 shoes in a downpour? If the cost isn't a concern to you neither should be replacing soles with leather. As to grip and such, I have worn dainties and I hate them. I found them to slip around on wet concrete, especially when crossing streets where there is undoubtedly rubber and oil present. Oak bark soles get a nap when worn, which I would imagine as a higher coefficient of friction with concrete than rubber and cement.
I agree with you...but once a person is convinced, even if it's only on the basis of urban myth or a superficial understanding of leather and rubber...there's no disabusing them of their notions.
That said, one doesn't have to look far to realize that rubber and truly problematic surfaces such as ice are not a happy combination. I grew up in the north country and to this day, all-weather tires not withstanding, I will not drive on icy payment without studs in the tires.
Heavily textured vibram outsoles--the "lug" soles--are good in snow and mud, etc., but not on ice. But topy and other rubber products don't have those lugs--they are, for all intents and purposes, just smooth, poreless, tractionless, surfaces esp. after they've been worn for a little bit.
Most people who read this forum probably don't wade in deep and dangerous rivers pursuing anadromous salmonids...one expensive hobby is enough...but the move is to rubber outsoles on wading boots because the Traditional felt (which gives amazing traction on algae and slime covered bedrock) is suspected of carrying diseases from one rivershed to the next. But the rubber outsoles are a disaster. They are slippery in the extreme, having to be augmented by carbide studs and when sufficient time has passed, I have even money that studies will prove that they are responsible for an increase in drownings or near drownings when compared to felt.
Edmond Hillery climbed Mount Everest in leather soles.