You miss the implied counterpoint. If Hillary wins and goes off the rails in pursuit of her progressivist agenda, which is likely, there will be no one person or institution that will be willing or powerful enough to stand up to her. They will either be packed with her cronies and thus unwilling, or rendered impotent by her supporters elsewhere. With there is a reasonable expectation of buffers against his excesses and missteps. There will be none against Clinton.