“How rich are garbage men?”/“Filthy.”

A wealth riddle is:
   
Q: How rich are garbage men?
A: Filthy.
   
That is, garbage men are “filthy rich.” The joke was posted on Reddit—ShitJokes  on November 9, 2017.
   
           
Reddit—ShitJokes 
Posted by u/Mikeyd613 November 9, 2017
How rich are garbage men
filthy
 
Reddit—Jokes   
Posted by u/dHgamer15 January 24, 2018
How rich are garbage men?
Filthy.
 
Twitter
Eric Shun
@thDRAGnrebOrN
I assume garbage men are filthy rich.
9:16 AM · May 1, 2018·Twitter for Android
     
Times Record News (Wichita Falls, TX)
The joke’s on you; I know the answer to this one
Published 12"34 a.m. CT May 27, 2018
(...)
How rich are garbage men?
Filthy.
 
Reddit—Dadjokes
Posted by u/cjkdash12 September 13, 2018
How rich are garbage men?
Filthy
 
Twitter
J ₳ ₵ ₭ ₴ Ø ₦ ₵ ₳ 4 4 ł ₵ ₭
@JDCOFFICIAL1
Replying to @JeevikanP and @Roblox
i heard that garbage men / bin men are filthy rich
2:33 PM · Dec 31, 2018·Twitter for Android
 
Twitter
Andy Dudones
@ADudones
How rich are garbage men?
Filthy rich
9:58 PM · Apr 6, 2019·Twitter for iPhone
   
Twitter
Yist📽
@YistLMAO
How right are garbage men? They are filthy rich.
3:14 PM · Jun 16, 2019·Twitter for Android
 
Twitter
𝓳𝓞𝓈𝔥
@JoshuaG914
Garbage men must be filthy rich
2:12 AM · Aug 29, 2019·Twitter for iPhone
 
Twitter
marul Hiking boot
@kamarul_izzany
how rich are garbage men?
Filthy rich
11:59 AM · Nov 1, 2019·Twitter for Android
 
Twitter
Tanay
@SinAuponCosA
Garbage men are Filthy rich
12:56 PM · Nov 26, 2020·Twitter for Android
   
Reddit—Jokes
Posted by u/Sirpeterdick January 16, 2021
How rich are garbage men?
Filthy
 
Reddit—Dadjokes
Posted by u/FlamingNinja925 May 15, 2021
How rich are garbage men?
Filthy rich.