I get the "but actually" thing, but I don't think it was that.
The OP said the skills are "mindbogglingly expensive". From personal experience they aren't (I worked in a team with embedded engineers with similar skills to those required for this).
I thought this was well understood - it's been discussed here a number of times.
I added the average salaries after getting voted down to -2 and that turned around the voting.
While there are a number of issues with average salaries I think it's notable that no one is claiming the opposite.
The OP said the skills are "mindbogglingly expensive". From personal experience they aren't (I worked in a team with embedded engineers with similar skills to those required for this).
I thought this was well understood - it's been discussed here a number of times.
I added the average salaries after getting voted down to -2 and that turned around the voting.
While there are a number of issues with average salaries I think it's notable that no one is claiming the opposite.