Actually, while doing this is a good idea for individuals diagnosing their system, There does seem to be a systemic issue. I hope I didn't come across as flippant.

I run TLP, turn of my ethernet and wifi when not using them, and otherwise try to save power. Windows users do none of these things, yet they still seem to get okay battery life.

It does beg the question... if the problem isn't in the kernel but in userland, what is the issue, and can something be done?

I will gladly give money to someone who will work on figuring this out.