You might want to give all that up if (a) you disagree with how they deal with customers, or (b) you think they negotiate badly, or (c) or you think they don't make the right deals, or (d) give you the wrong problems to solve, or (e) anything else along these lines.
This doesn't take into account the value of the "hope" that buying a lottery ticket gets you. Specifically, the owner of a lottery ticket has bought the right to dream about how their life could suddenly be turned around if only their numbers came up.
I admit that this "hope" may not be worth much to some people, but to those who are scraping by it might be worth quite a lot. (I will leave discussion about whether lotteries exploit the poor to another day.)
Yup. I do that. I've found it works much more effectively than late fees.
People love getting a bargain. Some financial departments are setup so that they will always take the cheapest option.
Make the cheapest option the one that gets you paid up front. Made my life much simpler.
You also get some of the advantages - to channel patio11 for a moment - of "charge more". Your base day rate - the one that anchors your true value - is the "expensive" one that factors in the cost of late payment to you.
Can't speak for the entire academic career, but in my CS grad school, for students and post-docs politics did not exist. Maybe it kicks in later when going after tenure or trying to win a proposal over 500 other submissions.
A properly-run academic department insulates its students as completely as possible from politics. If, as a student, you're having to concern yourself with departmental politics, it's a sign that your advisor isn't doing their job.
That said, while your advisor's job is in part to protect you from whatever politics are going on in your department, it is important that you not be completely politically naïve when you finish.
So your advisor probably shouldn't try to keep you totally in the dark if there are political shenanigans going on in your department or university... but they should do what it takes to ensure that those shenanigans are "not your problem." In other words, said shenanigans should be educational (possibly even entertaining), but not distracting, stressful, or have any other impact on your primary purpose in life: getting your dissertation out the door.