If all strength does is influence your attack then it serves no purpose in having two game stats. The same goes for Dexterity.
If essence is your main determinant for magical power then what exactly does Intelligence have a factor in?
Movement should be replaced by Speed which incorporates both movement and combat speed. If you can run over 60 mph then that is going to make a huge difference in how effective you are in combat. The horse charges...and you outrun it to a hill and use your time to shoot the knight with an arrow or blast it with a firebolt. Or simply the greater reaction speed necessary for handling that kind of speed would be pretty useful in swordsmanship.
This isn't the 1970's and we don't need attributes that just muddy up the waters. Wisdom could be replaced by simply taking your intelligence and Essence and using them as your mana regeneration rate depending on how you want to scale the stats.
Attack, Defense, Speed, Essence, Intelligence and Charisma or Leadership. This would get the job done.
A score of 0 would be ignorant or untrained, 1 would be basic competence, 2 professional, 3 very good, 4 Adept, 5 Master and on and on to inhuman or godlike levels.
If you want to have similar multipliers then replace the weapons and armor effect the score. A rating 2 weapon adds 2 to attack plus an additional (times .2 base attack) so each attribute would have a base and a modified score.
So a circlet of the Ivory Tower which is a rating 2 equipment adds two points to the intelligence of the wearer while also enhancing the genius of the Sovereign Milkanos whose Intelligence is 8 base leaving him with a 11.6 intelligence. (8 times 1.2 plus 2). Thus, the better you are naturally the bigger the improvement of using the better equipment.
This greater intelligence allows Milkanos a more effective government and Logistics while speeding research as he was able to read the entire work of his university over the weekend and give advice on where to research and for fixing cognitive errors like confirmation bias. By organizing the military structure his godlike intelligence allowed the savings of five gildars a year or somesuch. His respectable Charisma was also able to lower costs and increase efficiency since people like him and are happy under his rulership plus increasing the likelihood that adventurers would seek him out in order to serve such a noble ruler while also increasing all his nation's troops morale and combat effectiveness. Napoleon had a few words to say a morale if I remember right:)
Then all the attributes have big effects and are worth pursuing with Attack, Defense, and Speed the attributes of choice for the warrior with only effectiveness in the local arena while Intelligence and Charisma would effect the nation's effectiveness and Essence the magical power.
