Prior to the bot nuke RiD actually was just about losing money from the site, and he has to pay hundreds a month for the servers. 8 cents an hour isn't even that expensive; look at perfect fletcher for example, iirc it's about 12$ or so? You either get 99 in 150 hours or you get banned before then. If you get 99, you paid, oh wait... 8 cents an hour. If you get banned, you paid 12$ to lose the account. Since RiD is more for the players who wants to stay in the elite community, you tend to stay with 1-2 accounts, rather than mass botting multiple accounts, so it's not like you are gonna continue to use the bot after 99.
Also, the number of people who bot RiD on a daily basis is small enough that it has very very little effect on the rs economy. RiD only allows users to run one of each of their bots, meaning you can't mass farm gold or do anything that would effect the economy. Notice how back when RiD was around before free trade came back, all their money making bots made 200-350k an hour, which was fantastic money back then, and will continue to improve as all the other bots stay broken. Almost all users only run one bot at a time, so it's no different to the economy as if they did it themselves.
Also, I do respect the game, and RiD isn't used for goldfarming because he doesn't like how it does ruin the game, it's blatantly obvious how much better our economy and playing environment is since the bot nuke, even with RiD, Simba, and SCAR left.
There is nothing illegal about RiD. All it does is control your computer's mouse and click on objects and items in runescape. It breaks no copyright laws, or anything else. It's against the terms of service, but breaking terms of service for a video game is not against the law. Sure they could attempt to claim damages to the company, but have fun putting a number of profit loss from a userbase that is 98% paying members of Runescape who play from the official rs applet, who view advertisements, etc, all earning Jagex money.
RiD respects the game, he used to play when he was younger, and was actually interviewed multiple times by Jagex themselves for a job there, but decided against it because of the nasty comments Jagex employees made about the players during his visit. RiD doesn't think you should have to spend hundreds, if not thousands of hours sitting monotonously on a computer grinding to earn a 99 or earn the millions of gp that it takes to actually have fun in the game. If you think RiD opinion is such a bad thing, then maybe you need to reexamine some things.