IME, the best developers tend to be genuinely passionate about principles.

They aren't necessarily working for Mozilla now, because they can see right through a lot of obviously bad moves Mozilla has made, and ridiculously overpaid executives.

"Go where the biggest paycheck is" is people who care more about career than mission. Why would you even want those people, unless you can't get the mission ones.

Maybe, but if you actually want to poach people, you have to make large pay offers to get them to jump ship. So instead of just paying the prevailing rate for SWEs in $country, they need to actually look at how much those devs are making in the US and match that. Sure, it'll be expensive, but if it's only a handful of key people, it doesn't matter.

Trick is to start some sort of commune in Colombia and attract talent with the local amenities. Nice private community full of 10-15 software engineers, private chefs, security, etc would be less than $1-2k/month per person. Maybe turn it into a vacation spot: “tired of your work? Take 6 month sabbatical to come party in LATAM while making meaningful software. Work hard/play hard - apply by linking to the most meaningful PR you have contributed to an FOSS project.”

Honestly not a bad plan.