Why is MD radiology still a top choice of aspirants despite capping in salary?

I am not aware there is any cap to the salaries of radiologists. Some advantages unrelated to salary are:

1. Can read the images from one’s home
2. Can do “teleradiology” and read images from pretty much anywhere at your permanent location (I had my x-rays being read by radiologists in West Virginia back in 2000 when I worked in Kansas)
3. Clean, quiet, no patient or family interaction or very little (I love those parts of my practice, but not everyone does)
4. Don’t have to work at night or evenings unless so desired
5. Can join or create radiology groups and increase economic clout
6. Can move into interventional radiology and be at the top of the MD pay scale although that takes more years of and a separate training route
7. No night call unless you want it – and if you get called, you can read the images at home