No matter what business you are running, treating your employees in a fair and humane way will only affect your business in a positive way; increasing their morale and overall productivity.
Providing them an adequate amount of leave and vacation periods will most likely be for the good of your business. Here is an infographic series that sheds more light on the comparison of the U.S. to other countries in terms of leave policies.
Source: Americans Left Out with Lack of Leave