The phrase "much lesser role" is correct and usable in written English.
This phrase is used to refer to something that plays only a small role or has only a small amount of importance. For example, "In the latest software update, this feature now plays a much lesser role than before."
Both Wilders and the socialists have waged an anti-austerity, anti-EU campaign, with Wilders's anti-Muslim and anti-immigrant activism playing a much lesser role because of the domination of economic issues and budget cuts.
The chief aim of Helmut Kohl, the chancellor who presided over German unification and the creation of the single currency, had been to draw a line under Europe's fractured history politically, with economics playing a much lesser role.Mrs Merkel works hard on her European politics: no other EU leader spends as much time cultivating relations with colleagues across the continent.
Compared to other parts of Latin America, slavery played a much lesser role in the development of the Argentine economy, mostly because of the absence of gold mines and sugar plantations, which would have demanded huge numbers of slave workers.
The actual increase in risk of disease manifestation plays a much lesser role.
In perpendicular-flow habitats, the location of the HT plays much lesser role: functional modes of a community do not change whenever the HT occurred.
In perpendicular-flow habitats, place of the HT origin would play much lesser role: functional regimes of the community would not change whenever it occurred.
Further, implementing this technique ensures uninterrupted power supply to the complete load at much lesser rate.
While COX-2 expression was generally shown to be increased in NSCLC and to a much lesser extent in SCLC, the role of COX-2 expression in latter tumor type is difficult to determine, due to the fact that the numbers of SCLC tumors examined in these studies was very small.
Much lesser information exists in relation to the role of sex on the macrophage response to helminth-derived antigens.
It existed even as recently as the 1980s, built around a much tighter-knit group of dealers and collectors, for whom money played a lesser role.
Although the role of monocyte/macrophages is well established in native atherosclerosis, it has been studied to a much lesser extent in TA.
