Is it okay to wash a plate at a later point?

After reading:
Do the dishes: Why you should keep up with the washing up – ABC News

And especially:

"You will end up with a lovely bacteria soup, then you will stick your
hand in the sink to pull the plug out and do the dishes, and if you
don’t wash your hands properly you are going to cross-contaminate the
kitchen."

I started wondering if it’s okay if I leave a plate unwashed in the sink (the sink itself, not filled with water or anything like that, as described/hinted at in the quote), before leaving/rushing for work; in order to save time and wash it later with some next plate, when I return back from work (can be a bit late sometimes).

I usually always clean/wash things that have stains right away, but I only eat oats and milk for breakfast, which perhaps might make this seem like a non-issue; though I’ve honestly had this on my mind, for way too long at this point. Hopefully it is indeed a non-issue, but I’d love to hear what people think…

EDIT:
Basically my primary concern is the bacteria spread on the plate/invisible bacteria becoming harder to wash off, in regards to my prior use case…