'Service' as a concept disappeared from most airlines long ago. The beancounters saw to that.
Actually people just stopped paying for it and the beancounters took steps to avoid insolvency.
Google "Ryanair" and a firm called "easyJet". Good service doesn't come cheap in any industry and inr eal terms the all in fare we pay in economy today compares pretty well in comparison to wehat it used to be!