If they were just developing software that would be way too many, sure.
But if you count streetview car drivers trying to drive every street in the entire world every few years, people manually moderating crowdsourced contributions, people updating the map for all new construction worldwide, people working to maintain business listings for every business with a physical location (including those without much web presence), people dealing with adversaries who want to list their fake '24 hour emergency locksmith' all over every city, people parsing train and bus timetables in every city worldwide no matter how awful their websites are, an advertising sales team specifically targeting smaller businesses who are interested in local advertising...
But if you count streetview car drivers trying to drive every street in the entire world every few years, people manually moderating crowdsourced contributions, people updating the map for all new construction worldwide, people working to maintain business listings for every business with a physical location (including those without much web presence), people dealing with adversaries who want to list their fake '24 hour emergency locksmith' all over every city, people parsing train and bus timetables in every city worldwide no matter how awful their websites are, an advertising sales team specifically targeting smaller businesses who are interested in local advertising...