I think that some bacteriologists have been shifting the way they look at disease recently. I use a homeopathic treatment for depression and found out that the treatment was found by a bacteriologist who wanted to work on general health as well as targeting bacteria and other microorganisms that cause disease.
I think it's great that bacteriologists can look at health in both micro and macro terms and carry their knowledge of bacteria into other fields.
I also think that advancements in many fields would not be possible without the work of bacteriologists. Can you imagine a world without drug treatments and vaccines that save millions of lives every year?