Why not put knives in the dishwasher?
Well even for knives with no wood, a dishwasher is a very hostile environment. The reason is primarily for the blades. If you have quality knives that you care for, and plan to keep for many years, then it's just not worth it. It's just too easy for a knife to be jostled around and bang into other knives or silverware and get nicked.

You mention that you have a greater chance of getting cut when washing by hand. Well, there's a trick to that.

The easiest and safest way to wash a knife by hand is to press it flat against the side of the sink, then use your sponge/scrubber on the exposed side of the knife. Repeat for the other side. This keeps your blade safe, because the edge never touches anything. It also keeps your sponges and hands from being slashed to pieces by the blade.

Dry it immediately with a dish towel, using a pinching swipe from bolster to tip from the back of the knife.