even if it did get to pandemic proportions I think the govs are no longer capable
of an effective lockdown. Too many people anti vax, too many don't wanna have a lockdown, economy spiraling down the toilet, govs dissolving their medical response complex and not taking lessons from covid, the incubation time for hanta is too long, ect.    

if they are in the habit of doing something else
if the systems encourage a different use
if there is a high cost in switching 
if they don't travel the slums and know/experience/understand the problem... I doubt many in the crowd saw the vases and linked them to the slum problem

Humans are not naturally selfish it's just we are encouraged to be so. To claim we naturally are shutsdown the ability to change the situation.
And I would argue that love is the glue that binds society together. When humans at large fully believe in selfishness ethos then you don't have a society anymore.   

that's a funny way of showing it, tormenting her out of own home and into a far flung atelier. 

to love someone is wish them to be their best selves.

Thus he isn't dateable material. Especially someone so immature that they can't handle themselves and attack what they desire.
Bullying shouldnt be seen as a precursor to love.