Comment by deliciousturkey

At least personally, the point of graphics programming or making "engines" is not to make games. It is to make real-time graphics, implement interesting approaches etc. If you are making a game instead of an engine, you will probably never focus on the graphics / rendering part, and instead need to focus on gameplay, 3D modeling etc. For many people this is explicitly not what they want: They want to make engines, not games.