"I always thought that investing schools and hospitals was rather a good idea."
Certainly is, Mikey.
What is not a good idea is hiring armies of consultants (non-medical, that is), bean counters and scribes who contribute nothing to the well being of patients, and to take on scores of "teaching assistants" (and I've seen up to seven in one class) whose sole function seems to be to provide interpretation services for non-English speaking children.
That's the sort of thing youngmaf is referring to when he suggests that it is not money which the NHS is short of.