When the Mac was originally launched, there was an industry perception that GUIs were toys not suitable for business, so Apple was very worried that being a games platform would reinforce that image[0]. That initial worry seems to have left scar tissue in their corporate culture that would haunt Apple for decades.

[0]e.g. see the concluding paragraph on https://www.folklore.org/StoryView.py?project=Macintosh&stor...