In particular 222g, 222h and such have a "reliability factor", which can be summed up as, in a worst case scenario if it completely falls over, within its fall radius, is it going to hit anything or kill anyone?

For example, a self-supporting steel monopole in the middle of a field, that if it falls over is going to hit some corn has a very low reliability factor. Even if it has been engineered to withstand the worst case 120 mph wind with extensive rime ice loading.

On the other hand, if you have a 40 or 50 ft steel pole that's within the highway right away and it might fall over into traffic moving at 70 mph, that's a whole other question.

222G and H and similar do not cover scenarios like being hit by a 5 ton or 10 ton truck, I am not familiar with, but presumably there are also engineering standards for designing poles within the highway right-of-way that have to be able to withstand a certain sort of hit by a vehicle. Or being protected by a certain engineering standard of bollard.