Navpi, if you take that chip off you shoulder then you might actually see the benefits to the whole of the UK brought about by projects like so called 'Super Sewer'.
This project is financed in part by Thames Water customers and the rest by private investment. The tax income just from the construction of this £4.2bn project will be huge. Should any project anywhere else in the UK be able to secure finance this way then it would also go ahead. Privately funded large scale projects actually make money, create jobs and grow the UK's skillset. Compalining about a London centric government because they allow privately funded projects to go ahead makes no sense.
What we really need is more private investment in regional projects that can be made as attractive to foreign investors as the London based ones. This is actually one of the benefits of a LHR hub with good regional connections.
But don't let facts get in the way of a good north/south rant.