A friend of mine went through all those tiers(salary-wise at least) within a year and then got laid off several months in.
I would've stopped at tier 2, but he's a risk taker, which both enables him to do amazing things and occasionally gets him into serious trouble.
In any case this distribution is definitely there and interestingly if you, like me, hail from a popular outsourcing destination, your employer might charge the client high-tier rates and pay you a low-tier wage, so it's advisable to shoot for at least the mid-tier if you can manage to get through the recruitment process.
I would've stopped at tier 2, but he's a risk taker, which both enables him to do amazing things and occasionally gets him into serious trouble.
In any case this distribution is definitely there and interestingly if you, like me, hail from a popular outsourcing destination, your employer might charge the client high-tier rates and pay you a low-tier wage, so it's advisable to shoot for at least the mid-tier if you can manage to get through the recruitment process.