Dear StriveTitans,
You want members of this forum to do some "great thinking" for you. But then in return are you not expected to do some "small thinking" by way of disclosure of your name, designation, your industry, why you are asking this query etc?
Now coming to solving your query. I have different take here. In big companies employees are expected to handle their "primary" which cover about 80% of their time and "secondary" duties which cover about 20% of their time. Primary and secondary duties both go hand in hand. It is mentioned clearly in their appointment letter.
Secondary duties includes members of various committees (like sexual harassment committee), doing internal audit of some another department, enquiring matters of indiscipline of some other department etc.
If you start paying for doing some secondary duties, then other employees will also start asking for pecuniary benefits. This culture of remuneration for everything will start eroding the importance of the work. Employee should never work keeping an eye on the returns. This may foster disgruntlement like "he/she got more than me"!
In future by chance if some person puts forth some innovative idea because of which suppose your company saves millions, does it mean that you should share part of the savings to that employee? If yes, then what percentage?
When employees spend some time for the company, they get remuneration that. There could be some difference in the quantum of work. This concept of "additional payment" is applicable to lowest rung of jobs like helpers, maids etc and not to the white coloured employees. Moreover, conducting training or interviewing job candidates does not merit any extra payment.
In some central government organisations, "secondary duties" even find place in their Annual Confidential Report (ACR). Some marks are reserved for the quality of the work done in secondary duties.
However, I do not mean to say that you should not acknowledge the extra burden that the employees volunteer to take. Give them some memento in town hall meeting, nominate them for some training, put up the notice in notice board or office circular etc.
There were my views. Other senior members may give their views as well.
Ok...
Dinesh V Divekar