Again with the special physics just for cycling. Skin suits lower drag and hence are effective for all riders at all cycling speeds. whether the cost is worth the gain is up to each rider to decide for themself. Don't impose you values on others. And what do you mean by a pure racer? What separates the pure from the impure?

One thing to mention regarding greater time saved for slower riders, if you look at results for a time trial, the absolute time gaps between riders is about the same for the slower groups as it is for the faster ones. That means a slower rider is likely to move up more places by optimizing equipment than a faster one.