First, one thing I love about knives is they are fundamentally apolitical. Like almost everything, they can be politicized, but I'm racking my brain to come up with a single constructive conversation I've ever witnessed or participated in where the injection of politics (into an apolitical subject, such as nature) led to a more productive discourse. Bottom line: Knives are an ancient tool which transcend the boundaries we love to create between one another based on race, creed, sex, age, ideology, or whatever. And they cut right through the "us vs. them" paradigm, since everyone uses them.
Second (on topic), I work in a small law office and carry a small CF Sebenza. That's not exactly the same situation as the OP, but this particular knife is pretty non-threatening and fairly elegant. I use it (with a fair amount of discretion,) when I need to. It's a tool, and when reasonable people see you using a tool as a tool, there's no cause for alarm, discomfort, or intolerance.