The "mob" are people that are probably finding little meaning in life. Their "match" is probably feeling like they have something to fight for instead of their grueling 9-5 soul sucking work to pay debt in order to enrich just a few.
It's easy for humans to also externalize pain. They might be angry for very valid reasons, but which they feel powerless to change, and that anger is still in their body, needing, indeed a match to escape. Repressed anger causes disease (cf. Gabor Mate). It's a natural instinct to act out and let out misdirected anger.
Talking about "mob" is like talking about "witches" 400 years ago(pharmaceuts) or "hysteric women" 100 years ago (women with BPD or PTSD). It's dehumanizing and misses the point, and in a few years people will look back at comments like this like we look at witch burning and the stone age practices of psychiatry a few years ago.