I don't think you can truly compare Andre Ward and Vasyl Lomachenko.
Lomachenko is a dream fighter. He just happens to be extremely technically proficient, but he has a high octane style. Lots of fancy footwork and combination punching.
Ward is a technical genius, but can you look me in the eye and tell me that you would invite casuals to come and watch a Ward fight and expect them to enjoy it for 12 rounds ?
That's the point. Yes, Ward wins and has names on his resume and can rightfully be called the best overall fighter on the planet...
...but tell me something...the Bad Boy Pistons won 2 Championships in the 80's but does anyone talk about them ? Hell no. It's all about the Showtime Lakers, the Celtics and later on the Bulls. Hell, even Hakeem and the Rockets get spoken about more than the Pistons.
The reason is because outside of Isaiah's miracle plays, the Pistons were downright horrible to watch. Take a champion who wins in style and they will always be "remembered" years down the line.
American virtue is often seen as making something difficult look easy. It's the same principle as winning in style.
That's why people gravitate towards fighters like Tyson, Roy Jones Jr, Pacquiao, Lomachenko, etc. etc.
So I don't think it's fair to compare Ward and Lomachenko. Ward is obviously a better overall fighter based on his track record and ability.
However, don't be surprised is Lomachenko is the one who gets the fanfare, the money and the recognition even years down the road. That's how these things work.