Wow. Should I maybe have a career change to speech writer? I've just re-read my post and it sounds gooooooooooood.
No it doesn't.
Whilst you make a noble point in the globalised world, market forces apply and if you are making a greater revenue for whoever you work for, then the chances are that they will pay you a greater salary. Pilots, for instance, do not all earn the same; the larger the aircraft, the more complex the task, the higher the salary band so why should this premise not be the case for ATCOs?
You also make the point
Heathrow is busy in so much as they move a lot of people on big aircraft, but at the end of the day, they are tower only. Heathrow, being close to London also has high living costs.
Heathrow is busy in so much as it (whether we like it or not) moves a lot of aircraft - none of this lots of people in big planes nonsense. It remains the busiest aerodrome by almost 400 movements a day (obviously I am discounting Silverstone or LF during the Airshow) and it forms a vital part of the UK infrastructure, displayed by the importance that the Government, and the aviation industry, pins on the construction of the third runway. So whilst you might not like it, I don't want all UK ATCOs to get paid the same. However, I DO want all UK ATCOs to get paid fairly for the traffic that they work and it is here that more work needs to be done.
P7