Is "Build It Like You Intend to Sell It" Useful Advice? Zack Gould Niched

In his first job out of college, Zack Gould achieved "Rookie of the Year" status while selling for Liberty Mutual Insurance. He immediately began reassessing his own career goals once he realized the dream he was chasing didn't match his own core values.
He quickly pivoted, partnering with friend and colleague Matt Namoli to launch the G&N Insurance Company. They've since earned Inc. 5000 Fastest Growing Businesses status multiple times, been honored as one of the best places to work in Massachusetts, and successfully sold the business.
This is G&N's origin story as told by Zack.