The super rich working in the US do pay tax on their income. You seem to be conflating many separate issues, so let me explain in detail how it works.
Sergei Brin pays taxes on his income to the US.
Google Ireland doesn't pay taxes to the US on income earned in Ireland until they transfer the money to the US. (They do, however, pay taxes to Ireland.)
A guy working at a diner in Ireland will, as far as I know, never pay taxes even if he does transfer money to the US.
Google UK also pays most of it taxes to Ireland, despite the revenue being from the UK. Wonder if that has anything to do with Ireland having lower taxes?
Sergei Brin pays taxes on his income to the US.
Google Ireland doesn't pay taxes to the US on income earned in Ireland until they transfer the money to the US. (They do, however, pay taxes to Ireland.)
A guy working at a diner in Ireland will, as far as I know, never pay taxes even if he does transfer money to the US.