Third world countries who are just now creating the infrastructure necessary for internet communications are putting in the best technology for the job.
US companies on the other hand are using outdated technology that is downright ancient in comparison. Instead of upgrading their networks they would prefer to impose data caps on users, often times low enough that YouTube and other online video sites can eat through them with little to no effort at all.
In a time when the majority of the country have only one option for high speed internet, many are forced to upgrade to business level subscriptions just to use the internet as they choose.