Then you see reports that for example state the privatised system costs £1.2bn pa, which whilst superficially true ignores how the system functioned in BR so things like the cost of delay attribution is put down as privatisation cost. Even if 100% state owned and control delays would still be attributed so the relevant operating budgets could be charged accordingly, e.g. your 180 sets down outside Doncaster delaying all ECML services heading north for a couple of hours, the fictional Intercity east trains would be attributed the delay and thus delay costs..., broken rail outside Euston blocks all movements for three hours. The fictional GB rail maintenance west gets the delay attribution.