You can use 3DS Max or another program to learn 3D modeling, but you need to know why it is necessary in the first place. You live in a place where your concepts need to be real, and there is no way for you to get the kind of picture in your mind’s eye that you need any other way. You want to look at it in many different ways, and you want to know that you have covered every part of your idea before it moves on to another person. Your supply chain in the office moves from one person to another until the design is complete, and everyone working on the same models helps.
The people in the office who work on 3D modeling like you do need 3DS Max or something similar on their computers because there is no other way for you to collaborate on your work. The collaboration you do is important because it is the only way and the only time you can all work on the same things at the same time. You want to put the software on all the computers, and you can even use the same files as you all edit them. It is simple to do, and you will have files that you can save anywhere if you need to.
3D modeling is the wave of the future, and you need to know how to do it if you want to have any kind of design job. You are trying to figure out how you will learn to do each task that you will be asked to do in an office. You want to know that you have the skills to get and keep a job, and you want to know that you have a way to improve your abilities.