Short answer Yes and No. I hope you will bear with me.
You're at risk of being snared by Jagex the game's developer. Many people believe that Buy OSRS Gold damages the economy through altering the money flowI'm not able to say anything on this subject right now.
It's not, and as with many of the suggestions here there is no harm to anyone. If you consider it similar to trading accounts increases the excitement for the game. Assets that are not moving will remain unused for a long time and when they are transferred to a different person which will give it a fresh start and creates a new cycle of life for the account or for the gold.
My final thought? It's somewhere between bad and good.
I addressed this in a different question which might be helpful:
It's a great site to see the quality of rs buy gold sites are safe. These reviews are from actual people who have used the site, so they are impartial and free of bias, but take from them what you like -- I've just discovered the link on one of the most reliable forum.
Best of luck!