It is really hard to feel happy when you are poor (first hand experience), Money <i>can</i> buy happiness[1][2]. Conversely we do feel much joy when we see someone we envy fail, more so if we feel (rightly or not) that their success was ill deserved[3].<p>[1] <a href="https:&#x2F;&#x2F;si.wsj.net&#x2F;public&#x2F;resources&#x2F;images&#x2F;WE-AA766B_HAPPY_16U_20141107152410.jpg" rel="nofollow">https:&#x2F;&#x2F;si.wsj.net&#x2F;public&#x2F;resources&#x2F;images&#x2F;WE-AA766B_HAPPY_1...</a> - from page 12 of [2]<p>[2] <a href="http:&#x2F;&#x2F;www.brookings.edu&#x2F;~&#x2F;media&#x2F;research&#x2F;files&#x2F;papers&#x2F;2013&#x2F;04&#x2F;subjective-well-being-income&#x2F;subjective-well-being-income.pdf" rel="nofollow">http:&#x2F;&#x2F;www.brookings.edu&#x2F;~&#x2F;media&#x2F;research&#x2F;files&#x2F;papers&#x2F;2013&#x2F;...</a><p>[3] <a href="https:&#x2F;&#x2F;blogs.princeton.edu&#x2F;research&#x2F;tag&#x2F;schadenfreude&#x2F;" rel="nofollow">https:&#x2F;&#x2F;blogs.princeton.edu&#x2F;research&#x2F;tag&#x2F;schadenfreude&#x2F;</a>