It does no matter for good cause or bad cause because what matter is bitcoin are not made for bad cause, if thare some peoples who use bitcoin for bad cause then it is not the blame for bitcoin, just like peoples who make and sell knife where knife can be used in the kitchen or can be used to hurt peoples.
I'm now using bitcoin to gather funds to advance the movement I'm on since 10 years ago, I just recently use bitcoin fund channel a few days ago and still nothing yet ^_^
Every creation was made and design primary for a good cause but sometimes people also uses it to harm others that creates a negative impact to the creation. Just like bitcoin. It was made to help people but some people uses it into their hidden agenda or criminality. It is good for you that you use it for a good cause like gathering a fund for you movement. Just continue what you think good for your movement. At the end, God knows everything you did.