I'm not so familiar with the revolutions of 1848, but it seems like most revolutions happen when a society is suffering from severe economic crisis as well as food shortage. It seems that the 1840s was referred to as "the Hungry Forties" due to severe food shortages. I don't think many people are willing to upend their lives to change a political system that isn't failing to deliver their personal basic needs. I'm also not sure if the revolutions of 1848 were primarily about wealth concentration - weren't they rather about concentration of power?