1 vs 7 differences?

Yes, I know 1s and 7s are really different so this mistype probably shouldn't even occur. But 1s with high openness on the Big Five/have integrated more/have 7 in their tritype, or 7s with high conscientiousness/social 7s/are given responsibilities/have 1 in their tritype could definitely be lookalikes.

Social 7s are explicitly described by Naranjo as 'falling into that kind of stereotype of goodness' and 'very pure people...pursuing an ideal of himself and the world', which sounds like E1 idealism and 1w2-style altruism if you don't go too deep into the theory. They're also both said to be pretty devoted to making the world better, and even though they have different ideas on what that means (1: more perfect and orderly, and I will make it so; 7: more undefined but anyway I shall sacrifice myself and be of service) they probably also agree with each other on a lot, especially if they're in similar circles, like about how exploitation causes harm/injustice and reduces freedom, etc.

Social 1s at unhealthy levels are probably going to be the furthest thing from a 7 though, but I wonder if there's a version of the 1 who actually seems quite positive and open-minded, maybe on account of the 2 wing, and yet isn't the sp1 type of worrisome goodwill. Or if that's really just an so7.

In other words, suppose you meet an ethical and responsible person acting quite altruistically and does a lot, how would you differentiate between them being a 1w2/social 1 and a 7w6 (who are more community-focused)/social 7?