The thing with anti-bacterial soaps is not that the use of the soap is bad. The problem is the anti-bacterial part. It puts amounts of a broad spectrum antibiotic into the environment (be it your hands, your countertop, or the water system) in concentrations that aren't enough to do much, but are enough to put a little bit of selective pressure on the organisms and promote resistance.
It's also not particularly effective - soap and water, through a combination of both mechanical action and how soap disrupts cell membranes, works swimmingly. So there's a cost, and no benefit.
The answer to 'why isn't there a resistance to soap' is that soap, as a chemical, is absurd overkill. It's hellish on lipids of all sorts (tough on grease...and lipid cell membranes), and there's nothing to evolve a resistance to. Not expressing a particular protein, or expressing an enzyme that does a number on an antibiotic compound is effective - to evolve a resistance to soap, you'd somehow have to develop an entirely new type of compound to build cell membranes out of.
And while evolution is rather magnificent, that's asking a little much.