These tools give a nice boost to battery life for laptop users and reduce power consumption for desktop users. 99% of users won't turn them on themselves, so we should do it for them!
This was inspired by the article at http://www.omgubuntu.co.uk/2018/02/better-battery-life-on-fedora-linux, which ended thusly:
Ubuntu (And Other Distros) Can Learn From This
All the lessons learned can be applied to and implemented by other Linux distros too. If you long to extend battery life on Ubuntu or another distro, you know now you can.