It has nothing to do with laziness. If I were lazy I would not be rolling in a cart with cases, sandbags, tool booxes, stands, a V2, etc. and I wouldn't be so willing to set up, breakdown, move to a new location and do that 4 times in a day.
I don't use an assistant and everything is on me during a shoot. I move quickly and hate wasting time or making a model wait on me. I believe that the technical aspects of a shoot should be transparent to a model or art director and there should be a flow to the shoot.
If I was doing family portraits in my back yard it wouldn't matter but with clients and in the interest of creativity, being able to change not only position of a light but also power level allows me to work more efficiently and to make changes on the fly rather than being locked in to any one setup or taking aperture.
The same thing applies when I'm in the studio. If my main light is 8 feet in the air and my hair light is 8 feet in the air then I now have 2 strobes that I have to either lower and raise or I'm up and down on a step ladder.. and the step ladder doesn't even help when there's a strip light over my subject, mounted to a boom and coming from 6 feet off to the side. That strobe has its controls literally facing the ceiling so you can't just climb a ladder to make the adjustment.
I look for the tools that will make my job easier, not those that allow me to be lazy.