IMO - I don't think so. The bin, We have no idea of its origin, but we can assume it wasn't a brand new bin, and we already know of countless people who have touched it, how many do we not know about that have.
The gloves, Again, we cannot assume they are brand new gloves, IF they had been used by someone else prior to the defendant, or even handled by someone else prior to them handling them you will get DNA. I doubt very much they were sterile gloves, taken from packaging just for this purpose.