the .za "top-level" domain name: adminned by a single (competent) individual working without pay.
the "top-level" domains .com, .net and .org: adminning by a corporation (Network Solutions) recently sold (to Verisign) for $21 billion.
how can Network Solutions be worth that much money UNLESS their new owners plan to use its monopoly (in running root nameservers) to set up "toll roads" rather than delivering value.