The problem with contemporary (or future?) leaders is that you don't know enough about them. What is it called in english? Don’t count the chickens before they are hatched. - I think.
And leaders might change their policies while they are still in office. Putin before 2008 (or was it 2006) was far less aggressive (or at least it seemed that way), T. May was opposed to the Brexit before the vote and now has to carry it out, A. Merkel before 2011 was in favor of nuclear energy, Obama in 2008 was a political opponent of H. Clinton (for some reason
), Yeltsin was highly respected in the west in the beginning of the 90's, when Bush became president in 2001 there was no "war on terrorism". In most of these cases these leaders would have gotten different traits in a civ-like game before or after these changes. People can change, and public perception of them can change even more.
Even historical leaders are sometimes judged today in a completely different light than back in their day. During the Roman Republic today's system of left and right didn't exist yet, but there were two parties in the senate that could be considered as left and right. What is perhaps surprising is that both Caesar and Augustus, who started the type of monarchy in the west that lasted until the 18th to 20th century were
leftists. The conservatives of the 1st century BC were completely opposed to monarchy, in fact Caesar's murderers were conservatives.