The population has grown from 205 million in 1970 to 330 million today. If you think 50% of the people join the workforce that is an increase of 65 million more people working.
I think the damning thing is that it has. Just not for the workers. wages for high level executives for example not only kept up, it's gone so high that they can't even invest their money anymore. they're complaining about the lack of got investment opportunities instead, sitting on their billions which destroys their society even more by keeping the money from circulation.