I've been in the RO server community for nearly 8 years now... and yes, within the past few years there have been hundreds of thousands of Ragnarok servers made. However, one fact remains true. The ones that have stayed online for nearly 4~6 years now, are the ones ran by people who A) Know wtf they're doing, and B ) Actually help contribute back to the development of the emulation software.
People do have the right to run their own servers, hell a few years ago people would use eAthena to create testing grounds for testing RWC builds before the tournament came. These servers tend to die out really fast, it shouldn't make anyone nervous.
Most servers are created with the following ideas in mind:
Make Money
Want to be in control.
Want to make something "unique" and "different" to beat everyone else.
The servers made with those goals in mind never survive.
So, in short. Stop worrying about all the other servers out there and worry about your own. This is a free, open source software that anyone is allowed to use. It's what you do with it and how you contribute back to it that shows how much you care.