We have come, as a nation, almost full circle back to the deeply unequal America of the late 1920s. The future just keeps getting brighter for Americans with unique specialties. Randy Stearns has one such specialty: “home-tech integration.” Stearns helps people install and maintain high-tech gadgets. But we’re not talking “geek squad” and hooking up home networks here. We’re talking rich people — and electronic toys that can cost more than houses. [...]