A few things help a lot (for BOTH sides - which is weird to say as the two sides should be US vs Threat Actors, but anyway):
1. Detach your identity from your ideas or work. You're not your work. An idea is just a passerby thought that you grabbed out of thin air, you can let it go the same way you grabbed it.
2. Always look for opportunities to create a dialogue. Learn from anyone and anything. Elevate everyone around you.
3. Instead of constantly looking for reasons why you're right, go with "why am I wrong?", It breaks tunnel vision faster than anything else.
Asking questions isn't an attack. Criticizing a design or implementation isn't criticizing you.
Thank you,
One of the "security people".
I'm okay with the people in charge of building on top of my private information being jailed by very strict, mean sounding, actually-higher-than-you people whose only goal is protecting my information.
Quite frankly, if you changed any word of that, they'd probably be impotent and my data would be toast.