As to how it might affect a man or woman in a business context, I would say it’s possible that a conflict may arise when, for instance, it’s a Holy Day of Obligation and the evening Mass is the same time as an important business meeting. However there are usually several Mass times offered, so this kind of conflict shouldn’t be too difficult to resolve.
Or maybe during Lent when our spiritual prepartion requires us to fast or abstain, the business person must attend a business luncheon that makes it difficult to follow the fast or abstention. But again, there are ways to resolve this conflict.
Actually, I don’t know that these types of conflicts happen that often. Maybe others will have some thoughts on this.