> because as we know money isn’t a great motivator
HR industry would like you to believe that, but it's an intentional bastardization of the original research by Kahneman and Deaton (1), twisting their words to fit their cost cutting agenda. The original finding states that past a rather high threshold (~$75k), additional raise alone is an insufficient motivator. Below that threshold, money alone works just fine as a motivator. Above that threshold, pay hike still enhances other motivators.
In Bay Area, I agree that ethical concerns likely dwarf money. $120k/year in Europe would let them scrape the creme de la creme, despite near universal dislike among tech-crowd.
(1) https://www.pnas.org/content/early/2010/08/27/1011492107.abs...