Boys are less prone to UTIs than girls (I get a lot unfortunately), but it sounds like you're concerned for his cleanliness, and if that's the case then you're taking the time to make sure he's fresh and clean. We have a peri bottle next to the change table. When there's a big load in the diaper, I fold up a wash cloth, put it under his bottom, then spray his groin to get most of the mess off before wiping with either a damp wash cloth or baby wipes. My husband showed me how to clean the pens, and apparently it's not as delicate as we think it is. So if you need to scrub, ask your husband how much pressure you can put. Maybe ask him to clean the baby to see.
i wipe balls , butt , area and pull down the skin to just make sure none is left stuck in it