Not just juniors. Industry is full of senior and some staff engineers who see discipline as a waste of time.

The number of things I do in a day that half my coworkers see as a waste of time until they enjoy the outcomes is basically uncountable at this point.

If something is a “waste of time” it’s possible that you’re just lousy at it.

Self reflection is a rarer commodity than it should be. And most of the tasks you list either require or invite it.