@Monocrom it seems you've handled many Malkoffs and Surefires, what is it exactly that they have that the T14C lacks?
Honestly, overall better build-quality. Does the Weltool T14C feel like a cheap piece of junk that'll fall apart in your hands if you look at it funny? No. But you'll definitely feel the difference if you've handled a few Malkoffs and SureFires before acquiring a T14C. Those other two brands just have higher Q.C. standards. It isn't by a huge difference though. I'd put Weltool's build-quality on par with modern-day Nitecore models.
Seriously, if you blacked out "Weltool," and professionally inscribed "Nitecore" on the T14C body (and charged half the price) you'd fool pretty much everyone into wondering what this new Nitecore model happens to be. Not even joking. And, modern-day Nitecore build-quality is very good indeed. Just not up to the level of SureFire or Malkoff. If the Weltool T14C was my only tactical light, would I feel as though I was relying on a Bargain Bin alternative in terms of overall quality? No, absolutely not.
Once in rare while it's perfectly fine to knowingly overpay for something if it is what you need, and fulfills those needs better than everything else out there on the market. I do wish the T14C had a better impact rating than just 1 meter (barely over 3 feet). But unfortunately that's the average industry standard on a huge percentage of modern-day flashlights.