Solving my curiousity

• How much are they paid?

 Indonesian binman earn 900,000 rupiah per month from doing two jobs and  200,000 rupiah more from sorting through rubbish to find things which can be sold for recycling.
 http://www.bbc.co.uk/programmes/b01bmtfx/features/contrast-binmen

• why don't they develop the environment? 

 In Indonesia, 40 million people who are suffering from poverty. There are too many people to care for.
http://geog.ucsb.edu/~carr/wordpress/wp-content/uploads/2012/04/Bremneretal_IntEnvRev_201012.pdf

• Why is there many difference to Britain and Indonesian Bin man's environment?

i couldn't find this one :'(