Money.
Every one of these companies has the exact same target, which is to make more money for their shareholders than the previous quarter at the expense of everything else.
When a company is small and not making as much it's easier to make little changes to increase capital, but as the company gets larger and they run out of avenues to extract cash from they start getting more and more desperate and their tactics get more and more obvious.
I've just left a company for this exact reason, as their little cash grabbing exercises were starting to impact employees and they were making cuts all over the place in order to keep up the illusion of growth.
These CEOs don't think about the impact that new policies make, they just see more money not being extracted.
Comcast doesn't exist in the UK by name, but Sky does. Sky owns the website. Guess who owns Sky?