That's a false assumption. If they raised $1M seed at a $6M cap, that's 1.4-1.7%. I just pulled up AngelList and there are a number of seed companies offering that along with a decent salary. Taking the $6M to $60M is the risky piece and that's going to be hard, but opportunities to try are definitely available.
> You are never told what the outstanding # of shares are and typically the stock are valued in pennies.
If the CEO is unwilling to tell you when you ask, walk away.