Literacy and numeracy is more important and the jobs tend to require more human interaction whereas in the past it was not uncommon for talk to be forbidden during working hours. As workers acquire greater abilities and take on jobs that require them to think and to take on responsibilities, they are going to find the constraints of capitalist oppression increasing intolerable. Another important factor that is bound to ultimately undermine people's acceptance of capitalism is the fact that this system is an increasing obstacle to economic progress. Of course, these conditions don't make revolution happen by itself. There is nothing automatic about it.
People have to decide to make the change.
Although in a sense there is still something close to inevitable about the process. People cannot stare blindly at the increasingly obvious for ever. And a socialist transformation of society only has to fully succeed once irrespective of previous periods of dormancy or utter defeat. Capitalism on the other hand can have many periods of success but only needs to be resoundingly defeated once for it to be swept from the field permanently. Another thing in our favor is that a future socialist movement should have less trouble with reformism than the old movement had.