OK - lets look at this from another angle:
Please reply if you ever had an infection in your finger tip due to having punched the hole with your finger pricker to measure bg?
I have had IDDM for 40+ years, never had one case ever.
Also fun to think back, how it was taught to you as deeply religious discipline and of absolute hyper importance to swipe your injection site with an alcohol disinfectant swab before injecting your insulin. From like 10 years ago it was then made clear from clinical evidence, it was actually better for your health and skincare NOT to do so.
Btw for those that responded above that they found it important always to wash your hands before finger pricking. You need disinfectant and you need sterile use-once-only towels to avoid smearing bacteria onto your hands after a wash. And that you typically do not have in a private setting.