They jetset across the world without a bank manager or a mortgage in sight. And all for the price of a tube of toothpaste. All you need is a lot of money. The truth, however, sells itself. It doesn't need to be trumpeted to the skies.
Nothing is more infectious than the truth.
There is a Jew who sits in a most frugal apartment in Yerushalyim. He has never made any television appearances. He has never been interviewed on any chat show. No-one has ever advertised him. And yet the Jewish world beats a path to his door when it needs a halachic decision.