Exactly! Much truth to that.
Keep in mind we also tend to look at life centuries ago as far more simple and black and white than was the case. Slavery is a good example. Everyone today will swear that they would have been against slavery if teleported back into the past, but was it as simple as that? Lets take for example, a person inherits a slave plantation from their parents, what do they do, assuming they are abolitionists? Grant freedom to all their slaves? The complication here is that the vast majority of the slaves lacked the aptitude as well as welcoming environment to fend for themselves outside the plantation. Plus, good chance is gangs could just kidnap them and sell them to other plantations, I read some other anecdotal cases where some abolitionist minded slaveowners simply sold the slaves for a tidy profit and then took to abolitionism; a rather questionable kind of abolitionism.
And we can also ask how generations down the road- say 2200- will judge us. We all flock to walmart, but its prices are low because the goods are assembled in third world conditions with horrible working conditions, using child labor, no insurance, no rights... The glitter of gold jewelry in jewlry shops: do we think of children working mines in third world countries for that gold? We overlook it, but a later generation may take us to task.