This is a surprising recent notion. The Mughals sure didn't conquer territory to tax it for the peasant's benefit -- the entire purpose of conquering land was to extract taxes from these peasants, for yourself & your army.
Indian economist Amartya Sen is fond of pointing out that although India has no shortage of hungry people, it hasn't had a famine since the departure of the British. But he's also keen to point out that the significant difference is that the average Indian person now gets to vote governments in and out of power. This wasn't the case under the British, but it also wasn't the case when Shah Jahan dedicated more tax revenue to monumental architecture and unsuccessfully attempting to conquer Qandahar than resolving the Deccan Famine.