The recent update of Lightroom CC includes a new development panel called Transform. Among the options on this new panel is the Guided transform which lets you show Lightroom just how you want to straighten your image. It also includes an Auto transform which does a pretty good job on most images.
If a perfect world you might never need to align or crop any of your images. But in the real world there is times when having good tools to adjust your image makes life so much easier. Take this image that I transformed using the Auto transform. The transformation is pretty spectacular in that not only gave me the image I saw in my head, it did it with out losing any resolution. The image is still a 24mp (6000×4000 pixel) file.
The original image needed some work. This was because it was taken at Epcot on a crowded day and anything close to a straight image would have showed a lot of the crowd. If i could have the place to myself with a tilt-shift lens for my Fujifilm X-T2 I might have been able to get it done in camera. But I am really happy with the way it came out and I have no bad feelings about how the image was made.