If you view people as dead weight, that is the problem. Few folks that make a decent salary want to do the bare minimum. Only managers that treat them as such will call them 'dead weight'.
Note that I'm not claiming you to be a manager, however your viewpoint of these employees reflects some of the managers I've dealt with. I once worked at a company who provided zero training, zero documentation, very poor pay, and no possibility of anything despite offering the world when I joined. I was told by my manager that I was dead weight. I was fired by HR. The situation did not end well for them, legally, or in terms of coworkers leaving.
In my experience working in software development, I've encountered only one person who was dead weight, and he ended up leaving on his own. I've been doing this for close to 20 years mind you. I've seen many accused of being dead weight, and sure, some could have tried harder, but most simply struggled with the mess that was the code we were working on. The symptoms were common: no documentation, hostile management demanding tight deadlines, and poor communication.
Note that I'm not claiming you to be a manager, however your viewpoint of these employees reflects some of the managers I've dealt with. I once worked at a company who provided zero training, zero documentation, very poor pay, and no possibility of anything despite offering the world when I joined. I was told by my manager that I was dead weight. I was fired by HR. The situation did not end well for them, legally, or in terms of coworkers leaving.
In my experience working in software development, I've encountered only one person who was dead weight, and he ended up leaving on his own. I've been doing this for close to 20 years mind you. I've seen many accused of being dead weight, and sure, some could have tried harder, but most simply struggled with the mess that was the code we were working on. The symptoms were common: no documentation, hostile management demanding tight deadlines, and poor communication.