On the train run by Tokyo Met government,
there are a number of ads by loan sharks
and gambling (= pachinko).
東京都が経営する地下鉄内にはサラ金の宣伝がいっぱい。
パチンコも。
Also put up are ads by lawyers who are offering
help to those who have gone bankrupt.
Eventually, they may take more money away !
破産した人を救済する弁護士の広告も。
広告は社会を表す。