Answer:
Following a crowd can be helpful and harmful in many ways, for example:
Wether you belive that its the right thing to do, there are always followers that may go against it, as well as, people that are just there to interfere But there are also types of people in the community in which they beilive that they are lending a hand out to those in need as well as speak up for themselves.
Helpful:
When people are trying to make a change in the community for a good reason, a crowd of the community can help as well as service others.
People come together and help each other. They stand with one another, creating a closer relationship.
People will have your back in hard times. As there are many things people want to say, there are times where they cannot speak up for themselves and will possibly never be heard, but with a crowd, there is a better probrabillity that you will be able to say what you want out to others.
Harmful:
Crowds can become chaotic, creating havoc like trafficing, and protests against one another that could create bigger issues.
People who aren't involved may become involved. People that were protesting in a passive way, could now start using force in order to get what they want and harm those that weren't involved.
I hope this helps! :D