this is relatively unremarkable for those with an understanding of wage, labor, profit, price and capital.
capitalism will always seek to reduce labor cost. during the epoch of neoliberalism it achieved great strides in this by reducing labor power through union busting by both thatcher and reagan in the UK and US respectively. it has also effectively curtailed any increase in the minimum wage for nearly 20 years as well as reduced protections, regulation and prosecution for wage theft and overtime pay violations which it maintains as exclusively as civil matters while ensuring theft itself from a merchant in turn is always a criminal matter through the primacy of private property.
to learn more i recommend reading Marx's "Das Kapital," albeit its rather academic. Engels "wage labor" is also a good read to understand why housing is so persistently unaffortable but helps to understand why any other good or service slowly becomes so as well.