A lot of the conversation is about the value of the developers work being high enough to warrant higher salaries. With that argument we should look at gross salaries + taxes/fees paid by the employer on top of the gross salary.
Your personal tax rate is between you and the state.
This could mean hiring 1 really amazing engineer instead of 2 or even 3 average ones depending on the realities of your local market, and pay them based on what it would have cost you to pay the 2 or 3 engineers combined.
This is always a choice you have available, unless you're bootstrapping and can't even afford to make the first hire at those rates, at which point you're probably not looking to compete on the global stage to begin with, so this suggestion doesn't really apply.
Of course, the employee then has to pay VAT (19%) on everything they spend those 55% on.
This is fascinating to me, do you have any examples of jurisdictions where this is the case?
Here in Germany the “taxes” (they’re technically mandatory insurances) than an employer will have to pay on top of the gross salary all have a salary cap, the largest one being around €85k. After that any increase in gross pay has no additional cost. Of course my personal tax rate might take a hike but that’s not the concern of my employer.