Why is it called a “build” when someone repairs/paints/modifies a bike?

I can see if you start with a bare frame, and start designing, fabbing & welding bits on, but so often now, it is credit card contest involving damn little skill.
Or, like some 5 year olds got hold of the plasma cutter & MIG gun, and made a mess.

Is this my transition to Grumpy Old Manhood?