Reliability trumps innovation if people want to use the same stuff for a long time. In the consumer market it seems it's all about new stuff. People chuck out perfectly serviceable items because there's a new model they want. Which companies would bother to make a reliable mobile phone or computer for the mass market.

The facade of innovation works for larger items too. Why create a vehicle that lasts long after the 5 year bodywork warranty when you're just reducing your market. Entice people with the new model, make sure your goods don't last too long - that appears to be the capitalist way.