It is not about the abundant resources at PSG's disposal but rather about their resilience which I think the other teams do not have, if you take a good look at the players in the PSG squad you would notice that most of them are not that exposed as much as the players in Real Madrid but the PSG players play with much zeal at the moment, if this traits can be emulated by the other teams in ligue then they might dethrone PSG from the top soon.
Their resources alone is not what is fueling them amd I agree to that, they have a resilient mind of wanting to win something for the team and make themselves proud. Except that they are in a weak league, I find it okay to mention PSG when making a Madrid comparison. Their plauer and team depth is just pretty fair expect that in their domestic league it is actually the best and that is why I do not like localising their form amd strength but somehow it restricted their abilities and now they have the champions league, they will feel a bit higher above their Ligue 1.