Downside of working for Tesla: Be treated like an obsolete machine which must be deeply manipulated in order to work like the needed object. Musk demonstrates that he sees humans as fundamentally lacking and suspect, _especially_ insofar as they represent themselves as serving his aims.
Musk is also continually caught demonstrating that he respects renegade iconoclasts and their opinions more than the rational needs of his own hardworking employees.
This is a really dangerous dichotomy for his businesses right now, since the world is rapidly changing its opinion on manipulators, and tech is a really convenient place to start with that, since it is mechanistic by default and must build on a foundation of broad ethical agreement. Once the ethical agreement fades and the group is mistreated, that foundation is gone.
IMO Musk should immediately take steps to demonstrate that he can build and support ethical community frameworks. They should be directly informed by those who help him make all of his systematizing dreams come true. (If this sounds boring or silly to him, he should find his place of best fit in the overall system of business development, probably focusing on continually starting projects from the ground up with simpatico groups.)
The rest of his ethics focus (support for individual values, freedoms, & positions) is way too personal and will continue allowing group-ethics blind spots to go neglected. It's long-term drawing way too much goodwill from his employees, their families, drivers of his cars, the investors, etc.