Work Life

I had been performing my daily operations, projects, as well as supporting users since the day I joined the company.Whether it is day or nite or in the middle of the nite,i just do my job ensure that users are happy with my dept services. What my concern is that will the mgt understand the reasons y I am doing that or as long as users did not complain, they dun bother. Am I indispensible as I am willing to help or very technically inclined.Or will I be the 1st one to be asked to go?In the end, my colleague dun bother abt operations.Shall I continue like this or stop? I am not complaining of hardwork but to fufilling users’s request.