A state-owned company can better provide services to poorer people because they have no profit motive. They can spend their entire income on providing more services rather than making excuses about obligations to shareholders. Imagine if Telkom took their R10 billion and dumped 100% into rolling out services across the country. However Telkom is not a state-owned company - they're acting as a private company without competition. That lack of competition is the government's fault. They turned Telkom from a public service company acting in the public interest to a private company acting in self-interest without also making way for competition. Telkom was rolling out services to underserviced areas and their customer service had become excellent - until they were allowed to start shoring up their coffers and were privatised without competition. From 2001 Telkom has been allowed to overcharge by ICASA, using the basket of services lie.You guessed wrong. The Gov's plan has backfired on themselves. Yes they get oodles of cash from it, but the catch 22 is now how to put a noose on Telkom without curtailing the massive dividends that they have come to enjoy and scare off investors.
So they get another half arsed scheme going like making Sentech a broadband saviour for all (helps that they own 100% of that to)
The Telkom debacle is not a failure of state ownership versus success through private ownership, it is a failure in the way that privatisation has been carried out.
It makes no sense to privatise any company that is the sole provider of an essential service. Any such company that can be run for profit can be better run purely in the public interest. Blanket privatisation is one of the IMF/World Bank's many failed ideas that have wreaked havoc across the globe.