You have two choices in our current society to bring about change. Either force it through organized violence or wait for a major event that will destroy modern society and make people realize that the last century has been a farce. We do have people slowly waking up, but nowhere near enough. Most are content to stay in the matrix and indulge in the playground of consumption and pleasure that the elites built for the masses.

Individuals going out an committing random acts like this will do nothing to really change things long term.