Situationally, if Mold Earth and Mending etc are infinitely spammable, they put whole occupations out of work. Moving a 5ft cube of earth 5 feet every 6 seconds (or whatever time a round represents these days) basically makes shovels obsolete, Prestidigitation does the same for pretty much any cleaning task, and Mending means that stuff absolutely never need wear out or remain broken, and the implications of THAT on the economics of people trying to make a living from (for instance) tailoring or shoemaking or damn near any form of craftsmanship are pretty obvious.
Of course, this need never bother you in a game if you choose not to think about it, unless a PC decides to set up a 'we repair anything in 6 seconds!' shop. But it does have big implications on the implied setting.