It's more about non-restrictive usage than equality. No one has the right to stop you from using Bitcoin the way you want as long as it isn't for evil purposes.

Your good contribution or investment should be according to your ability, or what you can afford or wish to contribute. And your reward would be according to your contribution. Nevertheless that doesn't make you lesser or higher than others when it comes to doing the right things, or adhering to the principles/rules that govern the Bitcoin system.