I'm not sure what you mean by "gains getting sucked up from where they naturally would have gone". If you have a capitalist economy where: - productive output

I'm not sure what you mean by "gains getting sucked up from where they naturally would have gone". If you have a capitalist economy where: - productive output increases - wages remain the same - the length of the working day remains the same then you have gains accruing to the capitalists and not the workers. (In the case where wages also increase but at a lower rate than productive output, gains are accruing to both capital and labor but disproportionately so to capital)