"or whether its safer for the bloke to have worn gloves, clean hands might have helped.."
It seems to be that you have been given lots of comment on this issue, all of which is quite clear. Wearing gloves is a recommended practice by international health authorities, but their wear is principally to offer protection to the phlebotomist, not as a hygiene measure for the patient.
The important caveat here is hand hygiene, which absolutely should be adopted between patients, and if you ever have problems with someones hygiene in those circumstances, you should raise that issue with the person concerned.
As to the wearing of gloves in the health organisations in the UK - that is largely down to individual trusts whether this is adopted as a routine principle of for high risk patients only.