The problem with those who get to be virtual vs. those that are not, is you create two classes of employees. How do you compare pay and productivity for employees that have to go to office and spend two or more hours of being in traffic and get ready for that work, vs. someone who is working from home and does not have to do the same. How do you compare pay and bonus? How do you compare the monitoring?
In effect, people who are going to office, are subsidizing those that are working from home, so some adjustment in pay and perks at minimum should be made if company continues to honor work from home for some employees.