Is there any way to be really successful without being some kind of disingenuous sociopath or at least blithely unaware of the broader context of your success and the suffering it's built on?
No, not really. And if that makes somebody bitter, then I think that makes them sane.
This is story is the perfect example of the above. PG is selling us same old story that these two made it through hard work and attitude, while they really made it by opening up residential housing to rent-seeking speculators to use as hotels.