both are right. i only need 35 g a day because i only consume about 1800 calories a day. you probably consume somewhere around 2500 calories a day and need around 70 g. i should have expressed protein needs as a percentage rather than in grams, i'm sorry.
either way, the average american consumes more than 150% of his RDA of protein, so i think that if you tracked your protein grams for a day, you'd find that you were getting plenty of protein. when i was pregnant, i had to eat 80 g a day and had no problem doing so.