Mobility Creep and Turret Relevance

Essentially, has anyone else noticed turrets are a hell of a lot less scary than they were last season? I'll largely attribute this to the mobility creep that's been happening since season 4, but it also has factors from jungle gold increase and support gold increase. In other words, the entire player based power level has crept past some of the non-player elements imho. People are getting items faster and turrets themselves are dying at about the same time in my personal average game I've noticed a significant increases in succesful dives.

Right now I'm actually a fan of it, it allows for some awesome plays and prevents game standstills from happening as much. However, I'm just worried about the direction. Relevance of non-player elements is still a major factor in this game I feel and I think if the trend continues turrets may need some further tweaks. Thoughts people?