I use sterile gloves in larger excisions, usually ones where I expect to do some undermining, subcut. Here, I use more standard sterile technique in general. Also, in patients with artificial valves, replacement joints etc, I often use the more sterile method with less extensive excisions. Vinyl gloves under latex protect against latex allergy, 2. This was reviewed in an JAMA article last year.
Latex gloves have a much lower defect rate.
A few years ago I had an article from a surgery journal which I gave to a student. Unfortunately I never got it back. One wound was made with completely sterile technique but the edges of the wound were wither lightly cauterized in some or pinched with Allis clamps in others. Another set of wounds were made in parallel with the first using no sterile technique in fact feces was rubbed into the unsterile wounds in some of the dogs. The only wounds which became infected were the ones in which the wound edges were traumatized or devitalized.