The stigma of warding

It's been about a year and a half since we had the trinkets introduced, but for some people, it seems like its purchase is simply compulsory and don't actually use them. Obviously the most purchased one is warding totem, which gives you a free semi-ward every two minutes, which then turns into a better ward at level 9, and if you lay down 250 gold, you get a free full ward every minute FOREVER. It is extremely gold efficient, and with proper timing and diligent warding, with the GST alone you can hit the ward cap very easily.

So why don't people do it more often? Instead they harrass the support to ward more often, even if they're overcapping on wards. To put this into perspective, last game I played, I laid down 25 wards total. Four of those were bought wards; the rest were from the GST ALONE and yeah, for most of the game I was overcapped. The enemy's Leona, on the other hand, had a Sightstone and laid down 50 wards total, and I'm pretty sure 48 of those were just from the Sightstone. If I was overcapped with just the GST, I can't imagine how many wards she destroyed by laying down extra ones. Both of us outwarded the rest of our teams combined, and according to Leona's numbers, twice over for her. No one else laid down even 10 wards.

Like I said I only spent 250 gold to upgrade to what's basically half of a sightstone, and it provided enough wards to overcap for the whole game post level 9, so why don't more people do it? Don't complain about the lack of wards when the support is overcapping. The lack of a sightstone doesn't mean they aren't warding, and the cap would still be three wards regardless. Three wards won't cover the whole map. Other people have to chip in, too.