I accept SR is not great in rake maintenance but SR is much more passenger friendly than most of the zones in terms of providing the services.
SR has more trains and also most number of trains running with 24 coach rake.
As per IR fare structure SR makes more loss but not gives up providing services to most part of its zone.
SR...
more... is like MTC Chennai. MTC Chennai goes to nook and corner of the city and provides excellent conectivity.
SR has got huge job vacancies to be filled and vacant percentage is much higher than pther zones.