ISPs. HTTPS Everywhere and net neutrality laws are both endeavors designed to mitigate ISPs from providing ad networks and/or collecting data on Internet usage.
Of course, Google claims they do this for your benefit, but if it was for your benefit, they'd need to stop doing the same things with tracking scripts. This is how you can tell they are pushing these to reduce competition, not to increase your privacy.
In one of the major announcements for Chrome, 'Moving towards a more secure web' (2016-09-08) [1], the Chrome Security Team writes:
"Chrome currently indicates HTTP connections with a neutral indicator. This doesn't reflect the true lack of security for HTTP connections. When you load a website over HTTP, someone else on the network can look at or modify the site before it gets to you."
The word 'modify' is a hyperlink to an article titled 'AT&T Hotspots: Now with Advertising Injection' [2] (ironically, a non-HTTPS site).
Of course, Google claims they do this for your benefit, but if it was for your benefit, they'd need to stop doing the same things with tracking scripts. This is how you can tell they are pushing these to reduce competition, not to increase your privacy.