I am friends with one such family. They got out shortly after Chavez took over. Chavez was going after families that either were in high places before him or were aligned with his political enemies.
A friend from my refining days got an assignment to VZ to manage a fertilizer plant. It was half owned by an Italian oil company and needed refurbishment.
As things turned politically ugly, the US partner sent a Lear jet unannounced to a local airport and he and his wife got aboard, leaving their apartment and many of their possessions behind.